阅读说明：本技术 一种液压连续式压滤机 (Hydraulic continuous filter press ) 是由 张玮 何晓建 何小刚 何可青 张力强 韦汝勤 周瑞昌 于 2019-09-23 设计创作，主要内容包括：本发明公开了一种液压连续式压滤机,包括：多个压滤设备,分别用于对物料进行压滤；进料泵,通过换向阀与各所述压滤设备连接；压滤时,通过所述换向阀对应阀门的启闭使所述进料泵对其中的一个或多个压滤设备供料,以实现进料泵的连续进料。本发明通过增加换向阀,能够控制进料泵的方向,实现进料泵实现多个方向供料的效果,与单方向间歇供料相比,提高了供料效率；同时,本发明中,通过换向阀,实现了进料泵的持续进料。(the invention discloses a hydraulic continuous filter press, which comprises: the filter pressing equipment is used for carrying out filter pressing on the materials respectively; the feeding pump is connected with each filter pressing device through a reversing valve; during filter pressing, the feed pump supplies materials to one or more filter pressing devices through opening and closing of the corresponding valve of the reversing valve, so that continuous feeding of the feed pump is realized. According to the invention, by adding the reversing valve, the direction of the feeding pump can be controlled, the effect of feeding in multiple directions by the feeding pump is realized, and compared with unidirectional intermittent feeding, the feeding efficiency is improved; meanwhile, in the invention, the continuous feeding of the feeding pump is realized through the reversing valve.)

1. A hydraulic continuous filter press, comprising:

The filter pressing equipment is used for carrying out filter pressing on the materials respectively;

The feeding pump is connected with each filter pressing device through a reversing valve;

During filter pressing, the feed pump supplies material to one or more filter pressing devices through opening and closing of the corresponding valve of the reversing valve so as to realize continuous feeding of the feed pump;

The power of the feeding pump during working is 100-120 KW.

2. The hydraulic continuous filter press according to claim 1, wherein the reversing valve is rotated to start the feed end of one or more filter press devices to feed the feed end, and after the feed is completed, the reversing valve is rotated to close the feed end and start the feed end of another one or more filter press devices to feed the filter press devices, and the process is circulated until the feed pump completes all the feeds.

3. The hydraulic continuous filter press according to claim 1, further comprising a power device and a filter pressing area which are in one-to-one correspondence with each filter pressing device, wherein a plurality of filter plates are sequentially arranged in the filter pressing area, and the power device moves to drive the plurality of filter plates to be close to or far away from each other so as to realize extrusion or discharge.

4. A hydraulic continuous filter press according to claim 3 wherein the filter plates of adjacent filter press units are moved in opposite directions during the same operating condition.

5. The hydraulic continuous filter press according to claim 3, further comprising a separation plate disposed between adjacent filter press apparatuses for separation between adjacent filter press apparatuses and for limiting the position of the filter press device.

6. A hydraulic continuous filter press according to claim 3, wherein each filter press apparatus further comprises a thrust plate for defining the direction of movement of the filter plate.

7. The hydraulic continuous filter press according to claim 6, wherein the power device is a hydraulic oil cylinder, each filter press device corresponds to a pair of hydraulic oil cylinders, and the pair of hydraulic oil cylinders are respectively arranged at the left side and the right side of the thrust plate.

8. The hydraulic continuous filter press according to claim 7, further comprising a PLC control system and a hydraulic cylinder, wherein the PLC control system is respectively connected with the feeding pump and the hydraulic oil pump, the hydraulic oil pump is respectively connected with the hydraulic oil cylinder on the pressure device, and the PLC control system starts different hydraulic oil cylinders according to working states to control the working states of different filter press devices.

9. The hydraulic continuous filter press according to any one of claims 1 to 8, further comprising a frame, wherein a plurality of said filter press devices are installed on the same horizontal line of said frame.

10. The hydraulic continuous filter press according to claim 9, wherein the number of the filter pressing devices is 2N, N is a natural number greater than or equal to 1, the frame is a square frame, a central line of the square frame in the horizontal direction is a symmetry line, and the 2N filter pressing devices are symmetrically arranged on two sides of the central line.

Technical Field

The invention belongs to the technical field of mineral substance filter pressing, and particularly relates to a continuous filter press controlled by hydraulic pressure.

Background

In recent years, with the development of large-scale equipment and the increasing content of fine-grained materials in flotation clean coal in the process of coal separation, a filter press is gradually becoming the mainstream equipment for dewatering the flotation clean coal, such as a plate filter press, and is widely applied to the reformation of a coal preparation plant and the construction of a newly-built coal preparation plant. Compared with other devices, the plate filter press has obvious advantages: the operation is simple, the maintenance amount is relatively small, the single-unit processing capacity is high, and the discharging speed is high.

With the improvement of the filter press, the processing capacity of a single filter press is continuously improved, and the defects in the operation are slowly revealed, which are as follows:

the existing filter press is in an intermittent working state, namely when the filter press is used for feeding materials, extrusion discharging cannot be achieved, and when the filter press is used for extrusion discharging, feeding cannot be achieved, and in the whole working process, simultaneous feeding and extrusion discharging cannot be achieved, so that the whole extrusion efficiency is low, and the whole flotation process is low.

Disclosure of Invention

The invention discloses a hydraulic continuous filter press, which is characterized in that a feeding pump is connected with a plurality of filter pressing devices, so that continuous feeding of the feeding pump is realized, the feeding pump does not need to be closed and opened for many times, the feeding pump is greatly protected, and the power consumption is saved. Meanwhile, compared with the prior intermittent operation, the continuous feeding has the advantages of improving the efficiency, saving the running time and improving the service efficiency of the equipment.

In order to achieve the technical effects, the invention is realized by the following technical means:

A hydraulic continuous filter press comprising:

The filter pressing equipment is used for carrying out filter pressing on the materials respectively;

The feeding pump is connected with each filter pressing device through a reversing valve;

During filter pressing, the feed pump supplies material to one or more filter pressing devices through opening and closing of the corresponding valve of the reversing valve so as to realize continuous feeding of the feed pump;

the power of the feeding pump during working is 100-120 KW.

Among this technical scheme, through increasing the switching-over valve, can control the direction of charge pump, realize that the charge pump realizes the effect of a plurality of directions supplies, compare with unilateral intermittent type feed, improved feed efficiency.

Among this technical scheme, through switching-over valve, charge pump and a plurality of filter-pressing equipment, can realize the continuous feed of charge pump at different time quantums, and then in using, whole work operation is lasting, and among the prior art, the filter-pressing comprises four steps such as compressing tightly pressurize, material loading filter-pressing, air-drying (secondary dehydration), unloading and washing. In the whole working period, the feeding pump is started in a short period only in the step of feeding and filtering, and the feeding pump is closed in the other three steps, so that the running time of the whole working period is too long, the efficiency is low, and the feeding pump is frequently started and stopped, thereby greatly increasing the power consumption. Among this technical scheme, can use continuously after the material loading pump is opened, power consumption is few, only needs to open the material loading pump, can work for a long time, no duty cycle, and is efficient, and the user can be according to the demand, adjustment charge pump operating time, adjustment filter-pressing operating time.

As a further improvement of the invention, the reversing valve is rotated to start the feeding ends of one or more filter pressing devices to realize feeding of the feeding ends, after the feeding is finished, the reversing valve is rotated to close the feeding ends, the feeding ends of the other one or more filter pressing devices are started to realize feeding, and the process is circulated until the feeding pump finishes all feeding.

In this technical scheme, the charge pump during operation can once be to a filter-pressing equipment feed, also can once give a plurality of filter-pressing equipment feeds, and then realizes the effect of one or more filter-pressing simultaneously, among this technical scheme, through adjusting opening of feed end among the different filter-pressing equipment, has ensured the continuation of whole feeding process.

as a further improvement of the invention, the filter pressing device further comprises a power device and a filter pressing area, wherein the power device corresponds to each filter pressing device one by one, a plurality of filter plates are sequentially arranged in the filter pressing area, and the power device moves to drive the plurality of filter plates to be close to or far away from each other so as to realize extrusion or unloading.

In the technical scheme, through independent setting of each filter pressing device, the power device and the filter pressing region, independent work of each filter pressing device is ensured, and the problem of easy generation and independent work are avoided when one filter pressing region and one power device are shared, so that the efficiency is high, and the mutual influence is less.

As a further improvement of the invention, the filter plates of adjacent filter pressing devices move in opposite directions under the same working state.

In the technical scheme, for example, in the working state of filter pressing, the first filter pressing equipment moves towards the left, the second filter pressing equipment moves towards the right, and when the material is discharged, the first filter pressing equipment moves towards the right, and the second filter pressing equipment moves towards the left. A certain time period, when first filter-pressing equipment carries out the filter-pressing towards left, then the poor motion of second filter-pressing equipment is walked to move and is realized unloading, at this moment, first filter-pressing equipment and second filter-pressing equipment syntropy move, the direction syntropy of motion compares in relative direction, a certain section, the direction in the frame is in opposite directions, bear the weight of and reduce relatively, if be the motion in opposite directions, then in the junction, need great bearing capacity, in order to bear the filter-pressing of first filter-pressing equipment and the unloading of second equipment, and same department, carry out different constructions, requirements such as intensity are high, it is less than the requirement for the bearing capacity of opposite motion.

As a further improvement of the invention, the filter press further comprises a separation plate which is arranged between adjacent filter press devices and used for separation between the adjacent filter press devices and limiting of the filter press device.

in this technical scheme, through the division board, keep apart solitary filter pressing equipment, avoid scraping each other between two filter pressing equipment, simultaneously, the division board can also regard as thrust plate, inject the movement distance of every filter pressing equipment.

as a further development of the invention, each filter press device further comprises a thrust plate for defining the direction of movement of the filter plate.

Through the thrust plate and the isolation plate, a filter pressing area can be formed, and then the movement range of the filter plate in the filter pressing area is formed, so that multiple purposes are achieved, and the space is saved.

as a further improvement of the invention, the power device is a hydraulic oil cylinder, each filter pressing device corresponds to a pair of hydraulic oil cylinders, and the pair of hydraulic oil cylinders are respectively arranged at the left side and the right side of the thrust plate.

Through setting up the hydraulic cylinder in the thrust plate left and right sides, on the one hand, the symmetry is good, and on the other hand, the installation layout is reasonable.

As a further improvement of the invention, the filter pressing device further comprises a PLC control system and a hydraulic cylinder, wherein the PLC control system is respectively connected with the feeding pump and the hydraulic cylinder, the hydraulic cylinder is respectively connected with the hydraulic cylinder on the pressure equipment, and the PLC control system starts different hydraulic cylinders according to the working state so as to control the working states of different filter pressing equipment.

in the technical scheme, the automatic control principle is realized by adding the PLC, a user can set the working time, the working sequence of the hydraulic oil cylinders, the working time and the like according to the requirement, the labor is saved, and the efficiency is improved.

As a further improvement of the invention, the filter pressing device further comprises a frame, and a plurality of filter pressing devices are arranged on the same horizontal line of the frame.

in the technical scheme, a plurality of filter pressing devices are arranged on the same horizontal line of the frame, and the filter pressing devices are convenient to install and disassemble.

As a further improvement of the invention, the number of the filter pressing devices is 2N, N is a natural number which is more than or equal to 1, the rack is a square frame, a central line in the horizontal direction of the square frame is taken as a symmetrical line, and the 2N filter pressing devices are symmetrically arranged on two sides of the central line.

Among this technical scheme, the symmetry sets up in the filter pressing equipment of left and right sides, forms symmetrical structure for the weighing of frame both sides is the same, and is not only pleasing to the eye, and the structure is weighed the same moreover, and the equilibrium is good, can not cause the slope etc..

Drawings

FIG. 1 is a front view of a hydraulic continuous filter press according to the present invention;

FIG. 2 is a top view of a hydraulic continuous filter press according to the present invention;

In the figure:

100. A frame; 200. a first filter pressing device; 300. a second filter pressing device; 400. a separator plate; 500. an electronic control system; 10. a compression plate; 20. a thrust plate; 30. a feed conduit; 40. filtering the plate; 50. a first cylinder; 60. and a second oil cylinder.

Detailed Description

In order to facilitate understanding of technical means, creation features and achievement of the purpose and efficacy of the invention, the invention is further described below with reference to specific embodiments.

Referring to fig. 1, a hydraulic continuous filter press according to the present embodiment includes:

The filter pressing equipment is used for carrying out filter pressing on the materials respectively;

The feeding pump is connected with each filter pressing device through a reversing valve;

during filter pressing, the feed pump supplies material to one or more filter pressing devices through opening and closing of the corresponding valve of the reversing valve so as to realize continuous feeding of the feed pump;

The power of the feeding pump during working is 100-120 KW.

Among this technical scheme, through increasing the switching-over valve, can control the direction of charge pump, realize that the charge pump realizes the effect of a plurality of directions supplies, compare with unilateral intermittent type feed, improved feed efficiency.

Among this technical scheme, through switching-over valve, charge pump and a plurality of filter-pressing equipment, can realize the continuous feed of charge pump at different time quantums, and then in using, whole work operation is lasting, and among the prior art, the filter-pressing comprises four steps such as compressing tightly pressurize, material loading filter-pressing, air-drying (secondary dehydration), unloading and washing. In the whole working period, the feeding pump is started in a short period only in the step of feeding and filtering, and the feeding pump is closed in the other three steps, so that the running time of the whole working period is too long, the efficiency is low, and the feeding pump is frequently started and stopped, thereby greatly increasing the power consumption. Among this technical scheme, can use continuously after the material loading pump is opened, power consumption is few, only needs to open the material loading pump, can work for a long time, no duty cycle, and is efficient, and the user can be according to the demand, adjustment charge pump operating time, adjustment filter-pressing operating time.