阅读说明：本技术 一种制备无机保温板的滤水切割系统 (Water filtering and cutting system for preparing inorganic heat-insulating board ) 是由 王振宇 张成贺 岳耀辉 刘焕英 刘超 于 2020-12-29 设计创作，主要内容包括：本发明公开了一种制备无机保温板的滤水切割系统,包括用于承接湿胚自然掉落以及滤水压辊挤落的水分的第一水箱、用于承接真空吸滤装置吸落的水分的第二水箱,第一水箱内的水沿第一排水管排出并通过第一流量计检测得到第一流量,第二水箱内的水沿第二排水管排出并通过第二流量计检测得到第二流量；第一检测开关设于滤水压辊的末端,第二检测开关设于真空吸滤装置的末端,当湿胚移至第一检测开关下方,则第一检测器打开,若第一流量小于第一预设值,控制滤水压辊增大压力；当湿胚移至第二检测开关下方,则第一检测开关打开,若第二流量小于第二预设值,控制真空吸滤装置提高真空度。以准确控制湿胚含水率,确保烘干后产品稳定性。(The invention discloses a water filtering and cutting system for preparing an inorganic heat-insulating plate, which comprises a first water tank and a second water tank, wherein the first water tank is used for receiving water naturally falling from a wet blank and squeezed by a water filtering press roller, the second water tank is used for receiving water sucked by a vacuum suction filter device, water in the first water tank is discharged along a first water discharge pipe and is detected by a first flow meter to obtain a first flow, and water in the second water tank is discharged along a second water discharge pipe and is detected by a second flow meter to obtain a second flow; the first detection switch is arranged at the tail end of the water filtering press roller, the second detection switch is arranged at the tail end of the vacuum suction filtering device, when the wet blank moves below the first detection switch, the first detector is switched on, and if the first flow is smaller than a first preset value, the water filtering press roller is controlled to increase the pressure; when the wet embryos move to the lower part of the second detection switch, the first detection switch is turned on, and if the second flow is smaller than a second preset value, the vacuum suction filter device is controlled to improve the vacuum degree. The moisture content of the wet embryo is accurately controlled, and the stability of the dried product is ensured.)

1. The utility model provides a drainage cutting system of preparation inorganic heated board, includes drainage fourdrinier conveyer belt (3) that are used for carrying wet embryo, is used for squeezing wet embryo with the drainage compression roller (6) of dehydration and is arranged in absorbing the vacuum of moisture in the wet embryo and inhale and strain device (7), its characterized in that includes:

the first water tank (4) is arranged below the water filtering long net conveyor belt (3) and is used for receiving the naturally falling water of the wet blank before entering the water filtering press roller (6) and the water falling by extrusion of the water filtering press roller (6);

the second water tank (5) is arranged below the water filtering fourdrinier conveyor belt (3) and is used for receiving the water falling off from the vacuum suction filtering device (7) in a absorbing way;

a first drain pipe (17) connected to the bottom of the first water tank (4) to drain the water in the first water tank (4) along the first drain pipe (17);

a first flow meter (16) provided in the first drain pipe (17) and configured to detect a first flow rate of the first drain pipe (17);

a second drain pipe (20) connected to the bottom of the second water tank (5) to drain the water in the second water tank (5) along the second drain pipe (20);

a second flow meter (19) provided in the second drain pipe (20) and configured to detect a second flow rate of the second drain pipe (20);

the first detection switch is arranged at the tail end of the water filtering press roller (6) along the conveying direction of the water filtering fourdrinier conveyor belt (3), and is opened when the wet blank moves to the position below the first detection switch;

the second detection switch is arranged at the tail end of the vacuum suction filtration device (7) along the conveying direction of the water filtering fourdrinier conveyor belt (3), and is opened when the wet embryo moves to the position below the second detection switch;

the controller is in signal connection with the water filtering press roller (6), the vacuum suction filtering device (7), the first flow meter (16), the second flow meter (19), the first detection switch and the second detection switch;

when the first detector is switched on and the first flow is less than a first preset value, controlling the water filtering press roller (6) to increase the pressure; and when the second detector is switched on and the second flow is less than a second preset value, controlling the vacuum suction filter device (7) to improve the vacuum degree.

2. The water filtration cutting system for making inorganic insulation boards of claim 1 further comprising:

a third drain pipe (22) connected to ends of the first drain pipe (17) and the second drain pipe (20), respectively, so that water in the first drain pipe (17) and the second drain pipe is merged to the third drain pipe (22);

a third flow meter (21) provided in the third drain pipe (22) to detect a third flow rate of the third drain pipe (22);

the first cutting device (8) is arranged at the tail end of the water filtering fourdrinier conveyor belt (3) and is used for cutting the wet embryo;

the manipulator (9) is used for clamping and conveying the wet embryos conveyed to the tail end of the water-filtering fourdrinier conveyor belt (3) to the forming and cutting conveyor belt (13);

the third flow meter (21), the first cutting device (8) and the manipulator (9) are in signal connection with the controller, when the third flow is smaller than a third preset value, the manipulator (9) is controlled to stop running, and the first cutting device (8) is controlled to cut the wet embryo into wet embryo blocks according to preset beats, so that the wet embryo blocks fall along the tail end of the water filtering long-net conveying belt (3).

3. The water filtering and cutting system for preparing the inorganic heat-insulating board according to claim 2, wherein a surplus material conveying belt (25) for receiving the wet embryo block is arranged below the tail end of the water filtering long net conveying belt (3), and a surplus material recycling stirring tank (26) for receiving the wet embryo block is arranged at the tail end of the surplus material conveying belt (25).

4. The water filtering and cutting system for preparing the inorganic heat-insulating board according to claim 3, further comprising a water storage tank (23), wherein the end of the third water discharging pipe (22) is connected to the water storage tank (23), the water storage tank (23) is connected with the excess material recovering and stirring tank (26) through a water conveying pipe, and the water conveying pipe is provided with a water pump (24) for conveying water in the water storage tank (23) to the excess material recovering and stirring tank (26).

5. The water filtering and cutting system for preparing the inorganic heat-insulating board according to claim 4, wherein a material mixing device (1) for mixing materials is arranged above the front end of the water filtering long net conveyor belt (3), a material conveying pipeline for conveying materials to the water filtering long net conveyor belt (3) is arranged below the material mixing device (1), the material conveying pipeline is provided with a material conveying valve (2), the excess material recycling stirring tank (26) is communicated with the material mixing device (1) through an excess material conveying pipe (27), and the excess material conveying pipe (27) is provided with a pneumatic diaphragm pump (29) for conveying the materials in the excess material recycling stirring tank (26) to the material mixing device (1).

6. The draining and cutting system for making inorganic insulation boards according to claim 5, wherein the surplus conveying pipe (27) is provided with a bottom valve (28) between the starting diaphragm pump and the surplus recycling stirring device.

7. The water-filtering cutting system for preparing the inorganic heat-insulating board is characterized in that a fixed-thickness pressing roller (10) for fixed-thickness extrusion of a wet blank, a second cutting device (11) for trimming and shaping two sides of the fixed-thickness extruded wet blank, and a third cutting device (12) for cutting the trimmed and shaped wet blank in a segmented manner are sequentially arranged above the forming and cutting conveyor belt (13), the cutting direction of the third cutting device (12) is perpendicular to the cutting direction of the third cutting device (12), and a drying chamber (14) for receiving the wet blank obtained by segmented cutting and drying the wet blank is arranged at the tail end of the forming and cutting conveyor belt (13).

8. The draining cutting system for making inorganic insulation boards according to claim 7, wherein the first cutting means (8), the second cutting means (11) and the third cutting means (12) each comprise high pressure water cutting means.

9. The water filtration cutting system for making inorganic insulation boards according to any one of claims 2 to 8 wherein the third preset value is equal to the sum of the first preset value and the second preset value.

10. The draining and cutting system for making inorganic insulation boards of claim 9 wherein the first predetermined value is 0.66m³Min, the second preset value is 0.16m³Min, the third preset value is 0.82m³/min。

Technical Field

The invention relates to the technical field of insulation board manufacturing, in particular to a water filtering and cutting system for preparing an inorganic insulation board.

Background

The ceramic fiber inorganic insulation board generally comprises ceramic fibers, inorganic powder fillers and inorganic binders, has the advantages of excellent thermal insulation performance, high strength, high refractoriness and the like, and is widely applied to thermal insulation requirements of industries such as petrifaction, electric power, metallurgy, traffic, colored building materials and the like at present.

The traditional ceramic fiber inorganic insulation board is generally prepared by a wet process through processes of pulping, forming, extruding and drying, for example, long net forming, wet blanks are uniformly distributed on the long net and move forward along with a net belt, and the wet blanks are dewatered, cut, extruded and thickened in the moving process and then enter a drying chamber.

The water content of the wet embryo has a large influence on the cutting process, the overall structure of the wet embryo is loose when the water content is too high, collapse is easily caused when the edge of the wet embryo is cut, the appearance of the product is seriously influenced after drying, and secondary cutting is needed; in addition, the wet embryo is not easy to extrude and fix the thickness due to high water content, and the drying time is too long, so that the production efficiency is seriously influenced.

Therefore, how to avoid the problem of too high moisture content of the wet embryo is a problem to be solved by those skilled in the art.

Disclosure of Invention

In view of this, the invention aims to provide a water filtration cutting system for preparing an inorganic heat insulation board, which can accurately control the moisture content of a wet blank and ensure the stability of a dried product.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a preparation inorganic heated board's drainage cutting system, includes the drainage fourdrinier conveyer belt that is used for carrying wet embryo, is used for the drainage compression roller of extrusion wet embryo with the dehydration and is arranged in absorbing the vacuum of moisture in the wet embryo and inhale and strain the device which characterized in that includes:

the first water tank is arranged below the water filtering fourdrinier conveyor belt and is used for receiving the water naturally falling off before the wet embryo enters the water filtering press roller and the water falling off by the water filtering press roller;

the second water tank is arranged below the water filtering fourdrinier conveyor belt and used for receiving the water falling off from the vacuum suction filtering device;

the first drainage pipe is connected to the bottom of the first water tank, so that water in the first water tank is drained along the first drainage pipe;

the first flowmeter is arranged on the first drainage pipe and used for detecting the first flow of the first drainage pipe;

the second water discharge pipe is connected to the bottom of the second water tank, so that water in the second water tank is discharged along the second water discharge pipe;

the second flowmeter is arranged on the second drain pipe and used for detecting the second flow of the second drain pipe;

the first detection switch is arranged at the tail end of the water filtering press roller along the conveying direction of the water filtering fourdrinier conveyor belt, and is opened when the wet blank moves to the position below the first detection switch;

the second detection switch is arranged at the tail end of the vacuum suction filtration device along the conveying direction of the water filtering fourdrinier conveyor belt, and is opened when the wet blank moves to the position below the second detection switch;

the controller is in signal connection with the water filtering press roller, the vacuum suction filter device, the first flow meter, the second flow meter, the first detection switch and the second detection switch;

when the first detector is switched on and the first flow rate is smaller than a first preset value, controlling the water filtering press roller to increase the pressure; and when the second detector is switched on and the second flow is less than a second preset value, controlling the vacuum suction filter device to improve the vacuum degree.

Preferably, the method further comprises the following steps:

the third drain pipe is respectively connected to the tail ends of the first drain pipe and the second drain pipe so as to enable water in the first drain pipe and the water in the water pipes to be converged to the third drain pipe;

the third flow meter is arranged on the third water discharge pipe so as to detect a third flow of the third water discharge pipe;

the first cutting device is arranged at the tail end of the water filtering fourdrinier conveyor belt and is used for cutting the wet embryo;

the manipulator is used for clamping and conveying the wet embryos conveyed to the tail end of the water-filtering long net conveying belt to the forming and cutting conveying belt;

and the third flow meter, the first cutting device and the manipulator are in signal connection with the controller, when the third flow is smaller than a third preset value, the manipulator is controlled to stop running, and the first cutting device is controlled to cut the wet embryo into wet embryo blocks according to preset beats, so that the wet embryo blocks fall along the tail end of the water filtering fourdrinier conveyor belt.

Preferably, a surplus material conveying belt for receiving the wet embryo block is arranged below the tail end of the water filtering long net conveying belt, and a surplus material recycling stirring tank for receiving the wet embryo block is arranged at the tail end of the surplus material conveying belt.

Preferably, still include the water storage tank, the end connection of third drain pipe in the water storage tank, the water storage tank with the clout is retrieved the agitator tank and is passed through defeated water piping connection, the raceway be equipped with be used for with water in the water storage tank is carried extremely the water pump of clout retrieval agitator tank.

Preferably, the top of the front end of drainage fourdrinier conveyer belt is equipped with the batching agitating unit that is used for the batching, the below of batching agitating unit be equipped with be used for to the defeated pipeline of drainage fourdrinier conveyer belt, conveying pipeline is equipped with defeated material valve, clout retrieve the agitator tank with the batching agitating unit passes through clout conveyer pipe intercommunication, the clout conveyer pipe be equipped with be used for with material in the clout retrieve the agitator tank carry extremely the pneumatic diaphragm pump of batching agitating unit.

Preferably, a bottom valve is arranged between the starting diaphragm pump and the excess material recycling and stirring device of the excess material conveying pipe.

Preferably, a fixed-thickness pressing roller for extruding the wet blank in a fixed thickness manner, a second cutting device for trimming and shaping two sides of the wet blank extruded in a fixed thickness manner, and a third cutting device for cutting the trimmed and shaped wet blank in a segmented manner are sequentially arranged above the forming and cutting conveyor belt, the cutting direction of the third cutting device is perpendicular to the cutting direction of the third cutting device, and a drying chamber for receiving the wet blank obtained by segmented cutting and drying the wet blank is arranged at the tail end of the forming and cutting conveyor belt.

Preferably, the first cutting device, the second cutting device and the third cutting device each comprise a high pressure water cutting device.

Preferably, the third preset value is equal to the sum of the first preset value and the second preset value.

Preferably, the first preset value is 0.66m³Min, the second preset value is 0.16m³Min, the third preset value is 0.82m³/min。

According to the water filtration cutting system for preparing the inorganic heat-insulation board, when the wet blank moves below the first detection switch, the first detection switch is turned on, the state that each group of water filtration press rollers are extruded into the wet blank is indicated, the controller obtains the first flow and compares the first flow with the first preset value, if the first flow is smaller than the first preset value, the water filtration press rollers are not sufficiently extruded and dehydrated, and the controller controls the extrusion pressure of the water filtration press rollers to be increased, so that the dehydration effect of the water filtration press rollers on the wet blank is improved.

When the wet embryo moves to the lower part of the second detection switch, the second detection switch is turned on to indicate that all groups of vacuum suction filtration devices enter a suction filtration dehydration state of the wet embryo, the controller acquires a second flow and compares the second flow with a second preset value, if the second flow is smaller than the second preset value, the suction filtration dehydration of the vacuum suction filtration devices is insufficient, and the controller controls the vacuum degree of the vacuum suction filtration devices to be improved so as to improve the dehydration effect of the vacuum suction filtration devices on the wet embryo.

The water content of the wet blank can be accurately controlled on line through the online control of the dewatering effect of the water filtering press roller and the vacuum suction filtering device on the wet blank, the water content of the wet blank is prevented from being too high, the stability of the dried product is ensured, the prepared inorganic heat-insulating plate has excellent heat-insulating property and mechanical property, and the inorganic heat-insulating plate can be widely applied to the field of heat insulation and heat preservation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of a specific embodiment of a water filtration cutting system for preparing an inorganic insulation board provided by the invention.

Wherein, 1-a material mixing and stirring device, 2-a material conveying valve, 3-a water filtering long net conveyor belt, 4-a first water tank, 5-a second water tank, 6-a water filtering press roller, 7-a vacuum suction filter device, 8-a first cutting device, 9-a mechanical arm, 10-a fixed thickness press roller, 11-a second cutting device, 12-a third cutting device, 13-a forming and cutting conveyor belt, 14-a drying chamber, 15-a first valve, 16-a first flowmeter, 17-a first water discharge pipe, 18-a second valve, 19-a second flowmeter, 20-a second water discharge pipe, 21-a third flowmeter, 22-a third water discharge pipe, 23-a water storage tank, 24-a water pump, 25-a residual material conveyor belt, 26-a residual material recycling and stirring tank, 27-a residual material conveying pipe, 28-bottom valve, 29-pneumatic diaphragm pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide a water filtering and cutting system for preparing an inorganic heat-insulating plate, which can accurately control the moisture content of a wet blank and ensure the stability of a dried product.

Referring to fig. 1, fig. 1 is a schematic view of a specific embodiment of a water filtration cutting system for preparing an inorganic insulation board according to the present invention.

The invention provides a water filtration cutting system for preparing an inorganic heat-insulation board, which comprises a water filtration fourdrinier conveyor belt 3 for conveying a wet embryo, a water filtration press roller 6 for extruding the wet embryo to dewater and a vacuum suction filtration device 7 for absorbing water in the wet embryo, and is characterized by comprising the following components:

the first water tank 4 is arranged below the water filtering fourdrinier conveyor belt 3 and is used for receiving the naturally falling water of the wet blank before the wet blank enters the water filtering press roller 6 and the water squeezed and fallen by the water filtering press roller 6;

the second water tank 5 is arranged below the water filtering fourdrinier conveyor belt 3 and is used for receiving the water falling off from the vacuum suction filtering device 7;

a first drain pipe 17 connected to the bottom of the first water tank 4 to discharge the water in the first water tank 4 along the first drain pipe 17;

a first flowmeter 16 provided in the first drain pipe 17 and detecting a first flow rate of the first drain pipe 17;

a second drain pipe 20 connected to the bottom of the second water tank 5 to discharge the water in the second water tank 5 along the second drain pipe 20;

a second flow meter 19 provided in the second drain pipe 20 and detecting a second flow rate of the second drain pipe 20;

the first detection switch is arranged at the tail end of the water filtering press roller 6 along the conveying direction of the water filtering fourdrinier conveyor belt 3, and is opened when the wet blank moves to the position below the first detection switch;

the second detection switch is arranged at the tail end of the vacuum suction filtration device 7 along the conveying direction of the water filtering fourdrinier conveyor belt 3, and is turned on when the wet embryo moves to the position below the second detection switch;

the controller is connected with the water filtering press roller 6, the vacuum suction filter device 7, the first flowmeter 16, the second flowmeter 19, the first detection switch and the second detection switch in a signal mode;

when the first detector is switched on and the first flow is less than a first preset value, controlling the water filtering press roller 6 to increase the pressure; and when the second detector is switched on and the second flow is less than the second preset value, controlling the vacuum suction filter device 7 to increase the vacuum degree.

The water filtering long net conveyor belt comprises a water filtering long net conveyor belt 3, a vacuum suction filter device 7, a water filtering long net conveyor belt 3, a water filtering press roller 6 and a high-pressure water cutting device, wherein the water filtering press roller 6 and the high-pressure water cutting device are distributed above the upper surface of the water filtering long net conveyor belt 3, the vacuum suction filter device 7 is distributed below the lower surface of the water filtering long net conveyor belt, the center distance between round rollers at two ends of the water filtering long net conveyor belt 3 is 15-30 m, preferably 25m, the diameter of the round rollers at two ends is 20-30 cm, preferably 25cm, the width of the water filtering long net conveyor belt 3 is 1. The diameter of the water filtering press roll 6 is 25-35 cm, preferably 30cm, the length of the water filtering press roll 6 is 1.65-1.7 m, preferably 1.68m, and the center distance between the water filtering press roll 6 and the front end round roll of the water filtering fourdrinier conveyor belt 3 is 6-8 m, preferably 7 m. Two groups of water filtering press rollers 6 are arranged above the upper surface of the water filtering fourdrinier conveyor belt 3, the distance between the two groups of water filtering press rollers 6 is 2-4 m, preferably 3m, and the water filtering press rollers 6 are perpendicular to the conveying direction of the water filtering fourdrinier conveyor belt 3.

The vacuum suction filtration device 7 is located at the rear end of the water filtration press roll 6 and below the upper surface of the water filtration fourdrinier conveyor belt 3, the length of the vacuum suction filtration device 7 is 1.65-1.7 m, the preferred length of the vacuum suction filtration device is 1.68m, the suction filtration width of the vacuum suction filtration device is 20-40 cm, the preferred width of the vacuum suction filtration device is 30cm, three groups of vacuum suction filtration devices 7 are arranged below the upper surface of the water filtration fourdrinier conveyor belt 3, the distance between the three groups of vacuum suction filtration devices 7 is 3-5 m, the preferred length of the three groups of vacuum suction filtration devices 7 is 4m, the distance between the vacuum suction filtration devices 7 and the water filtration press roll 6 is 0.5-1 m.

First water tank 4 and second water tank 5 are still installed to drainage fourdrinier belt 3's below, it is preferred, first water tank 4 closely links to each other with second water tank 5, highly unanimous and independent drainage, the total length 16 ~ 32m of first water tank 4 and second water tank 5, it is preferred 26m, the width is 1.8 ~ 2.2m, it is preferred 2m, the distance of the upper surface of first water tank 4 and second water tank 5 apart from the lower surface of drainage fourdrinier belt 3 is 0.5 ~ 1m, it is preferred 0.8m, first water tank 4 is the same with the volume of second water tank 5, be 4 ~ 8 cubes, it is preferred 6 cubes.

A first drainage pipe 17 is arranged at the bottom of the first water tank 4, and a first flowmeter 16 is arranged in the first drainage pipe 17; the bottom of the second water tank 5 is provided with a second water discharge pipe 20, the second water discharge pipe 20 is provided with a second flow meter 19, the first flow meter 16 is used for detecting a first flow in the first water discharge pipe 17, and the second flow meter 19 is used for detecting a second flow in the second water discharge pipe 20. Specifically, a first valve 15 may be provided in the first drain pipe 17, and a second valve 18 may be provided in the second drain pipe 20 to control the flow of water to be opened and closed.

The use method of the water filtering and cutting system for preparing the inorganic heat-insulating plate provided by the invention comprises the following steps:

adding water, ceramic fibers, inorganic powder fillers and inorganic binders into a batching stirring device 1 according to a certain proportion, fully stirring for 20-40 min, preferably for 30min, wherein the volume of the batching stirring device 1 is 40-50 cubes, preferably for 45 cubes, the batching water consumption is 35-45 cubes, preferably for 40 cubes, the slurry concentration is 2-4%, preferably for 3%, and then adding a flocculating agent to enable the inorganic powder fillers and the inorganic binders to fully flocculate on the fibers to form flocs.

Opening the material conveying valve 2 to start discharging in a stirring state, and controlling the discharging speed through the material conveying valve 2, wherein the discharging time is 30-60 min, and preferably 40 min; and (3) starting the water filtering long net conveying belt 3 while discharging, wherein the net speed is 0.25-1 m/min, and preferably 0.625 m/min. The water-containing floccules advance on the water filtering fourdrinier conveyor belt 3, are naturally dehydrated under the action of gravity before reaching the water filtering press roller 6, form a wet embryo with a certain thickness, the thickness of the wet embryo is controlled to be 4-8 cm, preferably 6cm, and all water filtered out from the wet embryo flows into the first water tank 4, so that the water in the first water tank 4 flows into the first water drainage pipe 17 under the action of gravity.

When the wet embryo moves forward and is in contact with the water filtering press roller 6, the height of the water filtering press roller 6 is adjusted, the wet embryo is squeezed and dehydrated through the water filtering press roller 6, the pressure is 4-8MPa, when the wet embryo moves to the position below a first detection switch at the tail end of the water filtering press roller 6, the first detection switch is turned on, a signal of the first detection switch received by the controller obtains a first flow measured by the first flow meter 16, and specifically, the reading range of the first flow meter 16 is0.44～1.1m³And/min, aiming at different slurry concentrations, the reading of the first flow meter 16 should have a lower limit value, when the first flow measured by the first flow meter 16 is smaller than a first preset value, the squeezing and dewatering of the water-filtering press roll 6 are considered to be insufficient, and the controller controls the squeezing pressure of the water-filtering press roll 6 to be increased so as to improve the dewatering effect of the water-filtering press roll 6 on the wet embryo.

When the wet embryo continues to move and is about to contact the vacuum suction filtering device 7, the vacuum suction filtering device 7 is started to carry out vacuum suction filtering dehydration on the wet embryo, meanwhile, the second valve 18 is opened, the suction filtering vacuum degree is-0.07 to-0.1 MPa, preferably-0.09 MPa, water in the second water tank 5 flows into the second drain pipe 20 under the action of gravity, when the wet embryo moves to the position below the second detection switch, the second detection switch is opened, the controller receives a signal of the second detection switch and obtains a second flow measured by the second flow meter 19, and the reading range of the second flow meter 19 is 0.11 to 0.27m³And/min, when the reading of the second flow meter 19, namely the second flow is smaller than the second preset value, the suction filtration of the vacuum suction filtration device 7 is considered to be insufficient, and the controller controls to increase the vacuum degree of the vacuum suction filtration device 7 so as to increase the dehydration effect of the vacuum suction filtration device 7 on the wet embryos.

According to the water filtering and cutting system for preparing the inorganic heat-insulating board, when the wet blank moves below the first detection switch, all the groups of water filtering and pressing rollers 6 enter a state of extruding the wet blank, at the moment, the first detection switch is turned on, the controller obtains the first flow and compares the first flow with the first preset value, if the first flow is smaller than the first preset value, the squeezing and dewatering of the water filtering and pressing rollers 6 are insufficient, and the controller controls the squeezing pressure of the water filtering and pressing rollers 6 to be increased, so that the dewatering effect of the water filtering and pressing rollers 6 on the wet blank is improved.

When the wet embryo moves to the lower part of the second detection switch, each group of vacuum suction filter devices 7 enters a suction filter dehydration state of the wet embryo, at the moment, the second detection switch is turned on, the controller acquires a second flow and compares the second flow with a second preset value, if the second flow is smaller than the second preset value, the suction filter dehydration of the vacuum suction filter devices 7 is insufficient, and the controller controls the vacuum degree of the vacuum suction filter devices 7 to be improved so as to improve the dehydration effect of the vacuum suction filter devices 7 on the wet embryo.

The water content of the wet embryo can be accurately controlled on line through the online control of the dewatering effect of the water filtering press roller 6 and the vacuum suction filter device 7 on the wet embryo, the overhigh water content of the wet embryo is avoided, the stability of the dried product is ensured, the prepared inorganic heat-insulating plate has excellent heat-insulating property and mechanical property, and the inorganic heat-insulating plate can be widely applied to the field of heat insulation and heat preservation.

On the basis of the above embodiment, as a preferable mode, the method further includes:

a third drain pipe 22 connected to the ends of the first drain pipe 17 and the second drain pipe 20, respectively, so that the water in the first drain pipe 17 and the water in the water pipes can be converged to the third drain pipe 22;

a third flow meter 21 provided in the third drain pipe 22 to detect a third flow rate of the third drain pipe 22;

the first cutting device 8 is arranged at the tail end of the water filtering fourdrinier conveyor belt 3 and is used for cutting wet embryos;

the manipulator 9 is used for clamping and conveying the wet embryos conveyed to the tail end of the water-filtering fourdrinier conveyor belt 3 to the forming and cutting conveyor belt 13;

the third flow meter 21, the first cutting device 8 and the manipulator 9 are in signal connection with the controller, when the third flow is smaller than a third preset value, the manipulator 9 is controlled to stop running, and the first cutting device 8 is controlled to cut the wet embryo into wet embryo blocks according to preset beats, so that the wet embryo blocks fall down along the tail end of the water filtration fourdrinier conveyor belt 3.

The mechanical arms 9 are located between the rear end round roller of the water filtering fourdrinier conveyor belt 3 and the front end round roller of the forming and cutting conveyor belt 13, the total number of the mechanical arms 9 is two, the two sets of the mechanical arms 9 are symmetrically distributed on two sides of the water filtering fourdrinier conveyor belt 3, the distance between the mechanical arms 9 and the outer side of the edge of the water filtering fourdrinier conveyor belt 3 is 10-20 cm, preferably 15cm, and the vertical height between the mechanical arms 9 and the upper surface of the water filtering fourdrinier conveyor belt 3 and the upper surface of the forming.

When the manipulator 9 works, the manipulator firstly moves to the tail end of the water filtering long net conveying belt 3 to support a wet embryo which is about to be separated from the water filtering long net conveying belt 3, the wet embryo is pulled to the forming cutting conveying belt 13, and the water content of the wet embryo which passes through the water filtering long net conveying belt 3 and reaches the forming cutting conveying belt 13 is 200-400%.

Specifically, the first cutting device 8 is a high-pressure water cutting device, and the horizontal distance between the vacuum suction filter device 7 and the first cutting device 8 is 3-5 m, preferably 4 m. The first cutting device 8 is located on the outer side of the water filtering long net conveyor belt 3, the total number of the first cutting devices 8 is 1, the distance from the outer side of the edge of the water filtering long net conveyor belt 3 is 10-20 cm, preferably 15cm, the distance from the center of a circular roller at the rear end of the water filtering long net conveyor belt 3 is 1-2 m, preferably 1.5m, the vertical height from the water outlet end of the first cutting device 8 to the upper surface of the water filtering long net conveyor belt 3 is 10-30 cm, preferably 20cm, and the first cutting device 8 only cuts in the vertical direction of the water filtering long net conveyor belt 3.

In the continuous production process, the third flow meter 21 is used for detecting the total water filtration amount of the wet embryo on the whole water filtration fourdrinier conveyor belt 3, the reading of the third flow meter 21 is a third flow, when the third flow is smaller than a third preset value, the total water filtration amount of the wet embryo on the whole water filtration fourdrinier conveyor belt 3 is determined to be not up to the standard, and at the moment, the controller controls the manipulator 9 to stop operating so as to prevent the manipulator 9 from transporting the wet embryo with the water content not up to the standard to the forming and cutting conveyor belt 13.

Meanwhile, the controller controls the first cutting device 8 to start cutting, the first cutting device 8 is started and vertically cuts wet embryos with water content exceeding the standard, so that the wet embryos with water content not reaching the standard are cut into wet embryo blocks, the cut wet embryo blocks drop along the tail end of the water filtering long net conveying belt 3, the wet embryos with water content exceeding the standard are prevented from continuing to advance to the forming cutting conveying belt 13, and subsequent processing of the wet embryos with water content not reaching the standard is avoided. In this case, it is also necessary to increase the squeezing pressure of the drainage press rolls 6 and the suction degree of vacuum of the vacuum suction filtration device 7 to increase the drainage amount.

When the flow of the third flow meter 21 exceeds the third preset value again, the moisture content of the wet embryo reaches the standard again, the controller controls the first cutting device 8 to stop running, meanwhile, the controller controls the manipulator 9 to restart working, the manipulator 9 continues to pull the wet embryo to advance to the forming cutting conveyor belt 13, normal running of subsequent processing is guaranteed, the wet embryos cut on the cutting fourdrinier conveyor belt are guaranteed to be the wet embryos with the moisture content reaching the standard, and production efficiency is guaranteed.

In the process, the wet blank with the water content exceeding the standard is continuously subjected to vertical cutting by a high-pressure water cutting device, specifically, the wet blank is cut once when the wet blank advances by 0.6-1 m, preferably 0.8m, and the cutting pressure is 200-400 MPa, preferably 300 MPa.

On the basis of the above embodiment, preferably, a surplus conveyor 25 for receiving the wet embryo is provided below the end of the draining fourdrinier conveyor 3, and a surplus recovery agitator tank 26 for receiving the wet embryo is provided at the end of the surplus conveyor 25.

The surplus material conveying belt 25 is located below a gap between the water filtering long net conveying belt 3 and the forming and cutting conveying belt 13, specifically, the distance between the upper surface of the surplus material conveying belt 25 and the conveying belt on the lower surface of the forming and cutting conveying belt 13 is 1-1.5 m, preferably 1.25m, the distance between the front end of the surplus material conveying belt 25 and the rear end of the second water tank 5 is 10-30 cm, preferably 20cm, the length of the surplus material conveying belt 25 is 10-18 m, preferably 16m, the bandwidth of the surplus material conveying belt 25 is 1.5-2 m, preferably 1.7m, and meshes on the belt are 500-600 meshes, preferably 550 meshes.

The clout is retrieved agitator tank 26 and is located the terminal below of clout conveyer belt 25's ejection of compact direction, and clout is retrieved agitator tank 26 bottom and is equipped with wheel and grinds agitating unit, and the volume of clout retrieval agitator tank 26 is 30 ~ 50 cubes, preferably 40 cubes.

The wet embryo piece that first cutting device 8 cut will drop to clout conveyer belt 25 along the end of drainage fourdrinier conveyer belt 3 on to clout recovery agitator tank 26 is finally input to clout by clout conveyer belt 25, retrieve with the wet embryo piece that does not reach standard to the moisture content, so that realize recycling, avoid causing the material extravagant.

On the basis of the above embodiment, as a preferable option, the water storage tank 23 is further included, the end of the third drain pipe 22 is connected to the water storage tank 23, the water storage tank 23 is connected to the excess material recycling stirring tank 26 through a water pipe, and the water pipe is provided with a water pump 24 for conveying water in the water storage tank 23 to the excess material recycling stirring tank 26.

In this embodiment, moisture in first water tank 4 and the second water tank 5, collect to third drain pipe 22 through first drain pipe 17 and second drain pipe 20, and in finally converging water storage tank 23 along third drain pipe 22, water storage tank 23 links to each other through the raceway with clout recovery agitator tank 26, be equipped with water pump 24 in the raceway, in getting into clout recovery agitator tank 26 with the water pump 24 in the outlet pipe through water pump 24, wheel through clout recovery agitator tank 26 bottom grinds agitating unit and prepares into the thick liquids with wet embryo cutting clout and water homogeneous mixing again, can avoid extravagant material, can avoid wasting water again, realize the dual recycle of water and wet embryo material. The volume of the middle water storage tank 23 is 10-30 cubes, and preferably 20 cubes.

On the basis of the above embodiment, as an optimization, the top of the front end of the water filtration fourdrinier belt 3 is provided with the material mixing device 1 for mixing materials, the lower part of the material mixing device 1 is provided with the material conveying pipeline for conveying materials to the water filtration fourdrinier belt 3, the material conveying pipeline is provided with the material conveying valve 2, the excess material recovery stirring tank 26 is communicated with the material mixing device 1 through the excess material conveying pipe 27, and the excess material conveying pipe 27 is provided with the pneumatic diaphragm pump 29 for conveying the materials in the excess material recovery stirring tank 26 to the material mixing device 1.

The volume of the batching and stirring device 1 is 40-50 cubic, preferably 45 cubic, a discharge port of the batching and stirring device 1 is connected with the water filtering long net conveyor belt 3 through a conveying pipeline, a conveying valve 2 is arranged on the conveying pipeline, the distance between the conveying valve 2 and the upper surface of the water filtering long net conveyor belt 3 is 1-2 m, preferably 1.5m, and the vertical distance between a discharge port of the conveying pipeline and the upper surface of the water filtering long net conveyor belt 3 is 20-40 cm, preferably 30 cm.

Agitator tank 26 is retrieved to clout and batching agitating unit 1 links to each other through clout conveyer pipe 27, and clout is retrieved agitator tank 26 bottom wheel and is rolled agitating unit and prepare into thick liquids again with wet embryo cutting clout and water homogeneous mixing, can squeeze into batching agitating unit 1 again with retrieving thick liquids through pneumatic diaphragm pump 29 to this realizes thick liquids automatic cycle and uses, improves production efficiency.

On the basis of the above embodiment, the surplus material delivery pipe 27 is preferably provided with a bottom valve 28 between the starting diaphragm pump and the surplus material recovery stirring device. In this embodiment, a bottom valve 28 and a pneumatic diaphragm pump 29 are sequentially installed in the excess material conveying pipe 27. So that the opening and closing of the surplus material feed pipe 27 is controlled as required by the bottom valve 28.

On the basis of the above embodiment, as a preferable mode, a thickness-fixing press roll 10 for performing thickness-fixing extrusion on the wet blank, a second cutting device 11 for trimming and shaping two sides of the wet blank subjected to thickness-fixing extrusion, and a third cutting device 12 for performing sectional cutting on the wet blank subjected to edge-fixing shaping are sequentially arranged above the forming and cutting conveyor belt 13, the cutting direction of the third cutting device 12 is perpendicular to the cutting direction of the third cutting device 12, and a drying chamber 14 for receiving the wet blank obtained by sectional cutting and drying the wet blank is arranged at the tail end of the forming and cutting conveyor belt 13.

Specifically, the forming and cutting conveyor belt 13 is located at the rear end of the water filtering fourdrinier conveyor belt 3, the upper surface of the forming and cutting conveyor belt 13 and the upper surface of the water filtering fourdrinier conveyor belt 3 are located on the same horizontal plane, the diameters of round rollers at two ends of the forming and cutting conveyor belt 13 are completely the same as those of round rollers at two ends of the water filtering fourdrinier conveyor belt 3, the center distance between the round roller at the front end of the forming and cutting conveyor belt 13 and the round roller at the rear end of the water filtering fourdrinier conveyor belt 3 is 0.6-1 m, preferably 0.8m, the center distance between the round rollers at two ends of the forming and cutting conveyor belt 13 is 8-16 m, preferably 14m, and the bandwidth of the forming and cutting. The mesh of the forming and cutting conveyor belt 13 is 300-400 meshes, preferably 350 meshes. The diameter of the round rollers at the two ends of the forming and cutting conveyor belt 13 is 20-30 cm, and preferably 25 cm.

The upper surface of the forming and cutting conveyor belt 13 is distributed with a fixed-thickness press roll 10, a second cutting device 11 and a third cutting device 12, preferably, the second cutting device 11 and the third cutting device 12 are both high-pressure water cutting devices. The distance between the thick compression roller and the center of the front end round roller of the forming and cutting conveyor belt 13 is 2-4 m, preferably 3m, the diameter of the thick compression roller is 25-35 cm, preferably 30cm, the length of the thick compression roller is 1.65-1.7 m, preferably 1.68m, and the fixed thickness compression roller 10 is perpendicular to the conveying direction of the forming and cutting conveyor belt 13.

The second cutting device 11 and the third cutting device 12 are located at the rear end of the fixed-thickness pressing roller 10, wherein the horizontal distance between the fixed-thickness pressing roller 10 and the second cutting device 11 is 2-4 m, and preferably 3 m. The second cutting device 11 comprises two sets of high-pressure water cutting devices, the two sets of high-pressure water cutting devices are symmetrically distributed on two sides of the forming and cutting conveyor belt 13, the distance between the second cutting device 11 and the inner side of the edge of the forming and cutting conveyor belt 13 is 2-10 cm, and the vertical height between the water outlet end of the second cutting device 11 and the upper surface of the forming and cutting conveyor belt 13 is 10-30 cm, preferably 20 cm. The second cutting device 11 performs cutting only in the horizontal direction conveyed with the form-cut conveyor 13.

The third cutting device 12 is located at the rear end of the cutting device, specifically, the third cutting device 12 comprises a set of high-pressure water cutting device, the distance between the third cutting device 12 and the inner side of the edge of the forming and cutting conveyor belt 13 is 4-8 cm, and the vertical height between the water outlet end of the third cutting device 12 and the upper surface of the forming and cutting conveyor belt 13 is 10-30 m, preferably 20 cm. The third cutting device 12 performs cutting only in the direction perpendicular to the conveyance of the form-cut conveyor 13. The drying chamber 14 is located at the rear end of the forming and cutting conveyor belt 13, and the length of the drying chamber is 25-35 m, preferably 30 m.

When the manipulator 9 works, the manipulator firstly moves to the tail end of the water filtering long net conveying belt 3 to support a wet embryo which is about to be separated from the water filtering long net conveying belt 3, the wet embryo is pulled to the forming cutting conveying belt 13, and the water content of the wet embryo which passes through the water filtering long net conveying belt 3 and reaches the forming cutting conveying belt 13 is 200-400%.

When the wet blank approaches to the fixed-thickness press roller 10, opening the fixed-thickness press roller 10 to extrude the wet blank to be fixed in thickness, wherein the thickness is 2-4 cm, and is preferably 3 cm; when the wet blank approaches the second cutting device 11, two sets of high-pressure water cutting devices are started simultaneously, trimming and shaping are carried out on two sides of the wet blank according to the required width, the cutting pressure is 200-400 MPa, preferably 300MPa, the width of the cut wet blank is 1.5m, and the error is +/-1%.

According to the requirement, the wet blank with the fixed thickness and the trimmed edge is cut in the vertical direction through the third cutting device 12, so that the wet blank with a required certain length is obtained, the cutting pressure is 200-400 MPa, preferably 300MPa, and the error is +/-1%. The shaped and cut wet blank is then dried in a drying chamber 14 to obtain an inorganic board finished product after drying.

On the basis of the above embodiment, it is preferable that the third preset value is equal to the sum of the first preset value and the second preset value.

In this embodiment, the third preset value is equal to the sum of the first preset value and the second preset value, and as long as the dewatering amounts of the water filtering press roll 6 and the vacuum suction filter device 7 are always greater than or equal to the first preset value and the second preset value, it is determined that the water content of the dewatered wet embryo reaches the standard, for example, when the dewatering amount of the water filtering press roll 6 is high, the dewatering amount of the vacuum suction filter device 7 can be properly reduced, so as to reduce the cutting times of the wet embryo by the first cutting device 8, thereby ensuring the production efficiency. Specifically, the first preset value is 0.66m³Min, second preset value of 0.16m³Min, third preset value of 0.82m³And/min. Of course, other values may be set as desired.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The water filtering and cutting system for preparing the inorganic insulation board provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.