阅读说明：本技术 供浆设备以及供浆方法 (Pulp supply equipment and pulp supply method ) 是由 李日华 张天翼 姚强 路朋博 孙浩利 于 2021-09-17 设计创作，主要内容包括：本发明提供了一种供浆设备以及供浆方法,供浆设备包括：储液罐,储液罐上具有出液口、供气口以及与出液口和供气口均连通的储液腔内,出液口与供气口间隔设置；正压管,正压管内用于通入高压气体,正压管插设在供气口处,正压管的至少部分设置在储液腔内,正压管的出口与出液口相对设置,以使由正压管的出口排出的高压气体对出液口处的液体进行搅拌和加压。通过本发明提供的技术方案,能够解决现有技术中的供浆设备的出浆的浆液不均匀的技术问题。(The invention provides a pulp supply device and a pulp supply method, wherein the pulp supply device comprises: the liquid storage tank is provided with a liquid outlet, a gas supply port and a liquid storage cavity communicated with the liquid outlet and the gas supply port, and the liquid outlet and the gas supply port are arranged at intervals; the positive pressure pipe is used for introducing high-pressure gas, is inserted at the gas supply opening and is arranged in the positive pressure pipe, at least part of the positive pressure pipe is arranged in the liquid storage cavity, and the outlet of the positive pressure pipe is arranged opposite to the liquid outlet so that the high-pressure gas discharged from the outlet of the positive pressure pipe can stir and pressurize the liquid at the liquid outlet. By the technical scheme provided by the invention, the technical problem of uneven slurry output of the slurry supply equipment in the prior art can be solved.)

1. A pulp supply apparatus, comprising:

the liquid storage tank (10) is provided with a liquid outlet (11), an air supply port (12) and a liquid storage cavity (13) communicated with the liquid outlet (11) and the air supply port (12), and the liquid outlet (11) and the air supply port (12) are arranged at intervals;

the liquid storage device comprises a positive pressure pipe (20), wherein high-pressure gas is introduced into the positive pressure pipe (20), the positive pressure pipe (20) is inserted into the gas supply port (12), at least part of the positive pressure pipe (20) is arranged in the liquid storage cavity (13), and an outlet of the positive pressure pipe (20) is arranged opposite to the liquid outlet (11) so that the liquid at the liquid outlet (11) is stirred and pressurized by the high-pressure gas discharged from the outlet of the positive pressure pipe (20).

2. A slurry supply apparatus according to claim 1, characterized in that a projection of the outlet of the positive pressure pipe (20) onto the plane of the liquid outlet (11) is located within the outlet of the positive pressure pipe (20).

3. A slurry supply apparatus according to claim 1, characterized in that the flow cross section of the liquid outlet (11) and the outlet of the positive pressure pipe (20) are both circular ports, and the axis of the liquid outlet (11) coincides with the axis of the outlet of the positive pressure pipe (20).

4. The slurry supply apparatus according to claim 1, wherein the gas supply port (12) is located at a top of the liquid storage tank (10) and the liquid outlet port (11) is located at a bottom of the liquid storage tank (10).

5. The slurry supplying apparatus according to claim 1, wherein the air supply port (12) is plural, a plurality of the air supply ports (12) are arranged at intervals at the top of the liquid storage tank (10), the positive pressure pipe (20) is plural, the positive pressure pipes (20) are arranged in one-to-one correspondence with the air supply ports (12), and each positive pressure pipe (20) is inserted at the corresponding air supply port (12); the liquid outlet (11) is a plurality of, and a plurality of liquid outlet (11) and a plurality of positive pressure pipe (20) one-to-one set up, each liquid outlet (11) with corresponding the export of positive pressure pipe (20) sets up relatively.

6. The slurry supply apparatus according to claim 1, wherein a liquid inlet (14) is further disposed at the bottom of the liquid storage tank (10), and the liquid inlet (14) and the liquid outlet (11) are spaced apart from each other.

7. The slurry supply apparatus according to claim 6, wherein said two liquid outlets (11) are provided, said two liquid outlets (11) are spaced apart, and said liquid inlet (14) is provided between said two liquid outlets (11).

8. The pulp supply apparatus of claim 1, further comprising:

an evacuation valve (30) disposed on the fluid reservoir (10); and/or the presence of a gas in the gas,

the pressure safety valve (40) is arranged on the liquid storage tank (10); and/or the presence of a gas in the gas,

the overflow device comprises an overflow pipe (50) and an overflow valve (60), wherein the overflow pipe (50) is arranged on the side part of the liquid storage tank (10), and the overflow valve (60) is arranged on the overflow pipe (50).

9. A method of providing pulp, comprising:

injecting liquid into a liquid storage tank of the pulp supply equipment;

after the liquid storage tank finishes the liquid injection process, controlling an emptying valve of the slurry supply equipment and an overflow valve of the slurry supply equipment to be closed, and controlling a positive pressure pipe and a grouting valve of the slurry supply equipment to be opened in sequence;

and controlling the high-pressure gas at the outlet of the positive pressure pipe to blow towards the liquid outlet of the liquid storage tank, so that the high-pressure gas discharged from the outlet of the positive pressure pipe stirs and pressurizes the liquid at the liquid outlet.

10. A method of providing slurry according to claim 9, wherein the method of injecting liquid into the tank of the slurry supply apparatus comprises a first slurry supply, the first slurry supply method comprising:

controlling the emptying valve, the slurry supply valve and the overflow valve of the slurry supply equipment to be opened in sequence;

controlling the grouting valve and the positive pressure pipe of the slurry supply equipment to be closed;

controlling the slurry supply valve to be closed after first preset time so that the flow of the slurry flowing into the liquid storage tank through the slurry supply valve is larger than the volume of the liquid storage tank;

and after the slurry supply valve is closed, controlling the overflow valve to be closed.

11. The method of supplying slurry according to claim 10, wherein the method of injecting the liquid into the storage tank of the slurry supply apparatus further comprises re-supplying the slurry to replenish the slurry in the storage tank after the slurry supply by the re-supplying; the method for re-pulping comprises the following steps:

controlling a grouting valve of the slurry supply equipment and the positive pressure pipe to be closed in sequence;

controlling the emptying valve, the overflow valve and the slurry supply valve of the slurry supply equipment to be opened in sequence;

controlling the slurry supply valve to be closed after second preset time, so that the slurry flowing into the liquid storage tank through the slurry supply valve is larger than the slurry amount of the slurry supplied after the first slurry supply;

and after the slurry supply valve is closed, controlling the overflow valve to be closed.

Technical Field

The invention relates to the technical field of paper pulp molding production, in particular to pulp supply equipment and a pulp supply method.

Background

At present, for the pulp molding production industry, a production process of pulp fishing and forming is often needed, and the weight stability of a finished product of pulp of each plate can be often controlled by controlling the stability of the amount of pulp as an important process parameter of the amount of pulp in a pulp fishing tank.

However, the formed thickness of pulp at various locations of each pulp-made product is not uniform due to the non-uniformity of the slurry, which can seriously affect the quality of the finished product.

Disclosure of Invention

The invention mainly aims to provide a pulp supply device and a pulp supply method, so as to solve the technical problem that the pulp output of the pulp supply device in the prior art is uneven.

In order to achieve the above object, according to one aspect of the present invention, there is provided a pulp supply apparatus including: the liquid storage tank is provided with a liquid outlet, a gas supply port and a liquid storage cavity communicated with the liquid outlet and the gas supply port, and the liquid outlet and the gas supply port are arranged at intervals; the positive pressure pipe is used for introducing high-pressure gas, is inserted at the gas supply opening and is arranged in the positive pressure pipe, at least part of the positive pressure pipe is arranged in the liquid storage cavity, and the outlet of the positive pressure pipe is arranged opposite to the liquid outlet so that the high-pressure gas discharged from the outlet of the positive pressure pipe can stir and pressurize the liquid at the liquid outlet.

Further, the projection of the liquid outlet on the plane where the outlet of the positive pressure pipe is located in the outlet of the positive pressure pipe.

Furthermore, the flow cross section of the liquid outlet and the outlet of the positive pressure pipe are both circular ports, and the axis of the liquid outlet coincides with the axis of the outlet of the positive pressure pipe.

Furthermore, the air supply port is positioned at the top of the liquid storage tank, and the liquid outlet is positioned at the bottom of the liquid storage tank.

Furthermore, the number of the air supply ports is multiple, the air supply ports are arranged at the top of the liquid storage tank at intervals, the number of the positive pressure pipes is multiple, the positive pressure pipes and the air supply ports are arranged in a one-to-one correspondence mode, and each positive pressure pipe is inserted into the corresponding air supply port; the liquid outlet is a plurality of, and a plurality of liquid outlets set up with a plurality of positive pressure pipes one-to-one, and each liquid outlet sets up with the export of corresponding positive pressure pipe relatively.

Furthermore, the bottom of the liquid storage tank is also provided with a liquid inlet, and the liquid inlet and the liquid outlet are arranged at intervals.

Further, the liquid outlet is two, and two liquid outlets interval sets up, and the inlet sets up between two liquid outlets.

Further, the pulp supply apparatus further comprises: the emptying valve is arranged on the liquid storage tank; and/or, the pressure relief valve, set up on the liquid storage pot; and/or the overflow pipe and the overflow valve, wherein the overflow pipe is arranged on the side part of the liquid storage tank, and the overflow valve is arranged on the overflow pipe.

According to another aspect of the present invention, there is provided a pulp supply method including: injecting liquid into a liquid storage tank of the pulp supply equipment; after the liquid storage tank finishes the liquid injection process, controlling an emptying valve of the slurry supply equipment and an overflow valve of the slurry supply equipment to be closed, and controlling a positive pressure pipe and a grouting valve of the slurry supply equipment to be opened in sequence; and controlling the high-pressure gas at the outlet of the positive pressure pipe to blow towards the liquid outlet of the liquid storage tank, so that the high-pressure gas discharged from the outlet of the positive pressure pipe stirs and pressurizes the liquid at the liquid outlet.

Further, the method for injecting liquid into the liquid storage tank of the pulp supply equipment comprises primary pulp supply, and the primary pulp supply method comprises the following steps: controlling an emptying valve, a slurry supply valve and an overflow valve of the slurry supply equipment to be opened in sequence; controlling a grouting valve and a positive pressure pipe of the slurry supply equipment to be closed; controlling the slurry supply valve to be closed after the first preset time so that the flow of the slurry flowing into the liquid storage tank through the slurry supply valve is larger than the volume of the liquid storage tank; and after the slurry supply valve is closed, controlling the overflow valve to be closed.

Further, the method for injecting the liquid into the liquid storage tank of the pulp supply equipment further comprises pulp re-supply, so that the pulp is supplemented into the liquid storage tank after pulp supply through pulp re-supply; the method for re-feeding pulp comprises the following steps: controlling a grouting valve and a positive pressure pipe of the slurry supply equipment to be closed in sequence; controlling an emptying valve, an overflow valve and a slurry supply valve of the slurry supply equipment to be opened in sequence; controlling the slurry supply valve to be closed after second preset time, so that the slurry flowing into the liquid storage tank through the slurry supply valve is larger than the slurry amount of the slurry supplied after the slurry is supplied for the first time; and after the slurry supply valve is closed, controlling the overflow valve to be closed.

By applying the technical scheme of the invention, when the slurry supply equipment discharges slurry, high-pressure gas is introduced into the positive pressure pipe, and the high-pressure gas discharged from the outlet of the positive pressure pipe is used for stirring and pressurizing the liquid at the liquid outlet, so that the condition of uneven slurry caused by slurry deposition at the liquid outlet can be avoided, and the grouting speed at the liquid outlet can be ensured to ensure the production rate. Therefore, the technical problem of uneven slurry output of the slurry supply equipment in the prior art can be solved through the technical scheme provided by the invention.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a pulp supply apparatus provided according to an embodiment of the present invention;

fig. 2 shows a partial cross-sectional view of a pulp supply apparatus provided according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a liquid storage tank; 11. a liquid outlet; 12. an air supply port; 13. a liquid storage cavity; 14. a liquid inlet; 20. a positive pressure pipe; 30. an evacuation valve; 40. a pressure relief valve; 50. an overflow pipe; 60. an overflow valve; 70. a positive pressure valve; 80. a grouting valve; 90. a slurry supply valve; 100. a grouting pipe; 110. a slurry supply pipe.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 and 2, the present invention provides a slurry supply apparatus, which includes a liquid storage tank 10 and a positive pressure pipe 20, wherein the liquid storage tank 10 has a liquid outlet 11, an air supply port 12, and a liquid storage chamber 13 communicated with both the liquid outlet 11 and the air supply port 12, and the liquid outlet 11 and the air supply port 12 are spaced apart from each other. The positive pressure pipe 20 is used for introducing high-pressure gas, the positive pressure pipe 20 is inserted at the gas supply port 12, at least part of the positive pressure pipe 20 is arranged in the liquid storage cavity 13, and an outlet of the positive pressure pipe 20 is arranged opposite to the liquid outlet 11, so that the high-pressure gas discharged from the outlet of the positive pressure pipe 20 stirs and pressurizes the liquid at the liquid outlet 11.

Adopt such structure setting, when the confession thick liquid equipment goes out the thick liquid, let in high-pressure gas in the positive pressure pipe 20 to the liquid of outlet 11 department is stirred and is pressurizeed through the export exhaust high-pressure gas of positive pressure pipe 20, can avoid the inhomogeneous condition of thick liquid because of the thick liquid deposit of outlet 11 department leads to on the one hand, and on the other hand also can guarantee the slip casting speed of outlet 11 department in order to guarantee production rate.

In the present embodiment, the projection of the liquid outlet 11 on the plane of the outlet of the positive pressure pipe 20 is located in the outlet of the positive pressure pipe 20. Adopt such structure setting, can be convenient for make by the outlet exhaust high-pressure gas of positive pressure pipe 20 can act on in liquid outlet 11 better to be convenient for stir the thick liquid of 11 departments of liquid outlet better, also be convenient for improve the slip casting speed to 11 departments of liquid outlet better.

Specifically, the flow cross section of the liquid outlet 11 and the outlet of the positive pressure pipe 20 are both circular ports, and the axis of the liquid outlet 11 coincides with the axis of the outlet of the positive pressure pipe 20. By adopting the structure, the high-pressure gas discharged from the outlet of the positive pressure pipe 20 can better act on the liquid outlet 11, thereby being convenient for better improving the uniformity of the slurry at the liquid outlet 11 and better ensuring the grouting speed at the liquid outlet 11.

In the present embodiment, the air supply port 12 is located at the top of the liquid storage tank 10, and the liquid outlet port 11 is located at the bottom of the liquid storage tank 10. With the structure, the liquid in the liquid storage tank 10 can be conveniently and smoothly discharged from the liquid outlet 11, and the slurry in the liquid storage tank 10 can be conveniently pressurized through the air supply port 12 at the top.

Specifically, the air supply port 12 in the present embodiment is plural, the plural air supply ports 12 are arranged at intervals at the top of the liquid storage tank 10, the positive pressure pipe 20 is plural, the plural positive pressure pipes 20 are arranged in one-to-one correspondence with the plural air supply ports 12, and each positive pressure pipe 20 is inserted at the corresponding air supply port 12. The liquid outlet 11 is a plurality of, and a plurality of liquid outlets 11 and a plurality of positive pressure pipe 20 one-to-one set up, and each liquid outlet 11 sets up with the export of corresponding positive pressure pipe 20 relatively. By adopting the structure, the synchronous liquid outlet through the plurality of liquid outlets 11 can be conveniently realized, the liquid outlet uniformity and the liquid outlet speed of each liquid outlet 11 can be conveniently improved, the integral liquid outlet effect can be improved, and the paper pulp forming quality can be effectively ensured.

In this embodiment, the bottom of the liquid storage tank 10 is further provided with a liquid inlet 14, and the liquid inlet 14 and the liquid outlet 11 are arranged at an interval. With the structure, the liquid inlet 14 is arranged at the bottom of the liquid storage tank 10, so that the liquid inlet direction from bottom to top can be realized, the slurry in the liquid storage tank 10 can be stirred sufficiently, and the uniformity of the slurry in the liquid storage tank 10 can be further improved.

Specifically, in this embodiment, there are two liquid outlets 11, the two liquid outlets 11 are disposed at an interval, and the liquid inlet 14 is disposed between the two liquid outlets 11. By adopting the structure, the structure layout is optimized, the structure setting compactness is improved, and the slurry in the liquid storage tank 10 can be well and fully stirred when the liquid is fed.

Specifically, the slurry supply device further comprises an emptying valve 30, wherein the emptying valve 30 is arranged on the liquid storage tank 10; and/or, the pulp supply equipment also comprises a pressure safety valve 40, and the pressure safety valve 40 is arranged on the liquid storage tank 10; and/or, the slurry supply equipment also comprises an overflow pipe 50 and an overflow valve 60, wherein the overflow pipe 50 is arranged at the side part of the liquid storage tank 10, and the overflow valve 60 is arranged on the overflow pipe 50.

Preferably, the slurry supply apparatus in this embodiment further includes a blow-off valve 30, a pressure safety valve 40, an overflow pipe 50 and an overflow valve 60, the blow-off valve 30 is disposed on the storage tank 10, the pressure safety valve 40 is disposed on the storage tank 10, the overflow pipe 50 is disposed at a side portion of the storage tank 10, and the overflow valve 60 is disposed on the overflow pipe 50. With such a configuration, the evacuation valve 30 is provided to facilitate communication between the interior of the liquid storage tank 10 and the outside air when the evacuation valve 30 is opened, and preferably, the evacuation valve 30 is installed at the top of the liquid storage tank 10. By arranging the pressure safety valve 40, the pressure in the liquid storage tank 10 can be detected conveniently, so that the pressure safety valve 40 is opened when the pressure exceeds a safety threshold value in the liquid storage tank 10, and the liquid storage tank 10 is prevented from being exploded due to high pressure. Preferably, the pressure relief valve 40 is disposed at the top of the fluid reservoir tank 10. The overflow pipe 50 and the overflow valve 60 are arranged to facilitate the smooth outflow of the redundant liquid when the liquid is filled or exceeds the preset liquid level in the liquid inlet or filling process. Preferably, the overflow tube 50 is mounted near the top of the tank 10.

Preferably, the positive pressure pipe 20 in this embodiment extends to the bottom of the liquid storage tank 10, and the slurry supply apparatus further includes a slurry supply pipe 110, and a pipeline of the slurry supply pipe 110 is communicated with the liquid inlet 14. Be provided with positive pressure valve 70 on positive pressure pipe 20, through controlling malleation break-make time, can be convenient for realized the multiple stirring to the thick liquid in the liquid storage pot 10 and make the thick liquid more even, and the reasonable application of malleation also is that slip casting speed improves greatly for production efficiency.

The invention provides a pulp supply method, which comprises the following steps: injecting liquid into a liquid storage tank 10 of the pulp supply equipment; after the liquid storage tank 10 finishes the liquid injection process, controlling the emptying valve 30 of the slurry supply equipment and the overflow valve 60 of the slurry supply equipment to be closed, and controlling the positive pressure pipe 20 and the grouting valve 80 of the slurry supply equipment to be opened in sequence; and controlling the high-pressure gas at the outlet of the positive pressure pipe 20 to be blown out towards the liquid outlet 11 of the liquid storage tank 10, so that the high-pressure gas discharged from the outlet of the positive pressure pipe 20 stirs and pressurizes the liquid at the liquid outlet 11. By adopting the pulp supply method, the high-pressure gas discharged from the outlet of the positive pressure pipe 20 can effectively stir the liquid at the liquid outlet 11 so as to improve the uniformity of the pulp at the liquid outlet 11, and the high-pressure gas discharged from the outlet of the positive pressure pipe 20 can pressurize the liquid outlet 11 so as to effectively increase the liquid outlet speed of the pulp at the liquid outlet 11, thereby being convenient for improving the quality of a pulp finished product.

In this embodiment, the method for injecting liquid into the liquid storage tank 10 of the slurry supply device includes first slurry supply, and the first slurry supply method includes: controlling the emptying valve 30, the slurry supply valve 90 and the overflow valve 60 of the slurry supply equipment to be opened in sequence; controlling the grouting valve 80 and the positive pressure pipe 20 of the slurry supply equipment to be closed; controlling the slurry supply valve 90 to close after a first preset time, so that the flow rate of the slurry flowing into the liquid storage tank 10 through the slurry supply valve 90 is greater than the volume of the liquid storage tank 10; after slurry supply valve 90 is closed, spill valve 60 is controlled to close. By adopting the method, the liquid storage cavity 13 in the liquid storage tank 10 can be ensured to be communicated with the outside in the liquid inlet or liquid injection process, and the safety of liquid inlet is ensured; meanwhile, the maximum liquid storage amount of the first slurry supply which can be injected into the liquid storage tank 10 can be ensured, so that the subsequent liquid outlet can be carried out smoothly.

Specifically, the method for injecting the liquid into the liquid storage tank 10 of the slurry supply apparatus in this embodiment further includes re-supplying the slurry to replenish the slurry into the supplied liquid storage tank 10. The method for re-feeding pulp comprises the following steps: controlling the grouting valve 80 and the positive pressure pipe 20 of the slurry supply equipment to be closed in sequence; controlling the emptying valve 30, the overflow valve 60 and the slurry supply valve 90 of the slurry supply equipment to be opened in sequence; controlling the slurry supply valve 90 to close after a second preset time, so that the slurry flowing into the liquid storage tank 10 through the slurry supply valve 90 is larger than the slurry amount of the slurry supplied after the first slurry supply; after slurry supply valve 90 is closed, spill valve 60 is controlled to close. By adopting the method, the grouting valve 80 is closed firstly, and then the positive pressure valve 70 is closed, so that the liquid at the liquid outlet 11 can be stirred and accelerated by the high-pressure gas all the time, and the liquid outlet quality is improved. Meanwhile, the maximum liquid storage amount of the liquid storage tank 10 can be ensured to be satisfied by supplying the slurry again, so that sufficient liquid storage amount can be provided for subsequent liquid outlet.

Specifically, in this embodiment, after the first slurry supply, the second grouting, the third grouting, the fourth grouting, the fifth grouting, and the like are further included, and after the first slurry supply, the third grouting is performed after the second grouting, the fourth grouting is performed after the third grouting, the fifth grouting is performed after the fourth grouting, and so on. In this embodiment, the second grouting is a second grouting relative to the first grouting, the third grouting is a second grouting relative to the second grouting, the fourth grouting is a second grouting relative to the third grouting, and the fifth grouting is a second grouting relative to the fourth grouting. The second preset time in this embodiment is fixed, so that after the first slurry supply, the slurry supply amount discharged in the liquid storage tank 10 each time is the same, thereby facilitating to control the consistency of the slurry supply amount each time by controlling the opening time of the liquid outlet 11 of the liquid storage tank 10.

When the slurry supply equipment is operated for the first time, firstly, the emptying valve 30 is opened, then, the slurry supply valve 90 and the overflow valve 60 are opened, all other valves are in a closed state, the opening time of the slurry supply valve 90 is the time for the slurry supply amount to be approximately equal to the volume of the liquid storage tank 10, so that the first slurry supply amount can reach an overflow port no matter whether slurry exists in the liquid storage tank 10 or not can be ensured, the slurry supply valve 90 is closed immediately after the slurry supply time is up, the overflow valve 60 and the emptying valve 30 are closed after surplus slurry is drained from the overflow port, then, the positive pressure valve 70 and the grouting valve 80 are opened, the opening time of the grouting valve 80 is the time for the grouting amount to meet the slurry amount required by molding slurry fishing, the door of the grouting valve 80 is closed immediately after the grouting time is up, and the door of the positive pressure valve 70 is closed again after the slurry in the pipeline of the grouting pipe 100 is basically used. During grouting, positive pressure is introduced into the liquid storage tank 10 (or called quantitative tank) to accelerate grouting speed, and closing time of the positive pressure valve 70 (which can be of an electromagnetic valve structure) is delayed to avoid vacuum formed in the pipeline of the grouting pipe 100 from influencing grouting speed. Specifically, the slurry injecting pipe 100 is connected to the liquid outlet 11.

Immediately and sequentially opening the emptying valve 30, the overflow valve 60 and the slurry supply valve 90 after the first grouting is finished, performing second slurry supply on the quantitative tank, wherein the second slurry supply time is slightly longer than the time for the slurry in the quantitative tank to reach an overflow port again on the basis of the residual slurry in the quantitative tank after the first grouting, the later grouting time is the same as the time, closing the slurry supply valve 90 after the slurry supply is finished, closing the overflow valve 60 after the redundant slurry is discharged from the overflow port, then waiting for the next grouting to start, opening the positive pressure valve 70 in advance before the next grouting starts, re-stirring the paper pulp fibers deposited at the bottom of the quantitative tank through the positive pressure pipe 20 extending to the bottom of the quantitative tank, so that the slurry is more uniform, closing the emptying valve 30 at first and then opening the grouting valve 80 for grouting when the grouting preparation starts, and the grouting time is the same as the first grouting time.

And then circulating the second slurry supply and grouting process until the production equipment is stopped.

In the embodiment, the accurate control of the grouting amount of the liquid storage tank 10 is realized through the logic design of the on-off of the overflow pipe 50 of the liquid storage tank 10 and the on-off of each valve, so that the controllability of the production cost is improved.

In this embodiment, the pulp supply device can be used for reasonably applying positive pressure or high pressure, reasonably arranging the positive pressure pipe 20 and reasonably controlling the switching logics of different valves, so that quick pulp supply and uniform pulp supply can be conveniently realized, and the effective control on the pulp supply amount can be conveniently realized.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: compare in traditional gravity confession thick liquid mode, need not to promote the position height of liquid storage pot and just can promote speed 50%, and supply the degree of consistency of thick liquid better, make production efficiency improve, supply thick liquid volume in addition and obtain better control, manufacturing cost's controllability improves greatly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.