CN214214841U - Flat plate dehydrator with round circulation vacuum-pumping system - Google Patents

Abstract

The utility model discloses a flat plate dehydrator with a round-robin vacuum pumping system, which comprises a material distribution mechanism, a conveying mechanism, a squeezing mechanism and a discharging mechanism, wherein the squeezing mechanism comprises a lower support part, a plurality of water outlets are arranged on the lower support part, the water outlets are connected with a vacuum pumping system, the vacuum pumping system comprises a round-robin control station, the round-robin control station comprises branch air pipes, one end of each branch air pipe is connected with one water outlet, and the other end of each branch air pipe is connected to a main pipeline; a branch gas pipe valve is arranged on the branch gas pipe and is in signal connection with the round-robin control station PLC; the main pipeline is connected to a vacuum tank, and the vacuum tank is connected with a vacuum pump. The utility model has the advantages that: the vacuum extraction area is obviously reduced, and a mode of circularly extracting a local area replaces a mode of extracting the whole area at one time, so that the specification requirement of the vacuum pump is reduced, and finally the reduction of energy consumption is realized.

Description

Flat plate dehydrator with round circulation vacuum-pumping system

Technical Field

The utility model belongs to the environmental protection equipment field specifically is a dull and stereotyped hydroextractor with round-robin vacuum pumping system.

Background

Chinese patent document CN106746418A discloses a "self-cleaning flat press dehydrator" in 2017, 5/31, which comprises a frame, a filter belt, a first belt, a second belt, a third belt, a fourth belt, a fifth belt, a sixth belt, a sixth belt, a sixth belt; at least one flat plate dehydration module is arranged between the feeding end and the discharging end, the upper part of the flat plate dehydration module comprises an upper pressing part which can vertically reciprocate, and the lower part of the flat plate dehydration module comprises a fixed lower support part; the lower bottom surface of the upper pressing component and the top surface of the lower supporting component are both parallel to the horizontal plane; the lower support component comprises a liquid discharge groove plate, a liquid discharge groove is distributed on the liquid discharge groove plate, and a water outlet of the liquid discharge groove is connected with a vacuum suction system; the vacuum pumping system comprises a vacuum pump and an automatic liquid discharge tank, wherein the outlet of the automatic liquid discharge tank is connected with the vacuum pump, and the liquid inlet of the automatic liquid discharge tank is respectively connected with the water outlet of the liquid discharge groove; the filter belt rotates circularly, and the part between the feeding end and the discharging end is positioned between the upper pressure part and the lower support part. The invention has the beneficial effects that: the discharge effect of the filtrate can be strengthened, the filter belt can be cleaned, and squeezing dehydration can be carried out more effectively. In the actual use process of such a conventional structure, because the area of the region for extracting vacuum is relatively large, a relatively large vacuum pump needs to be equipped to meet the extraction requirement, and the larger the vacuum pump is, the higher the energy consumption is.

Disclosure of Invention

The to-be-solved technical problem of the utility model is that, the vacuum extraction area of current hydroextractor is great, leads to the specification of vacuum pump great, and the energy consumption is on the high side. The utility model provides a dull and stereotyped hydroextractor with round-robin evacuation system can show and reduce vacuum extraction area to the mode of circulation extraction local area replaces the mode of once only extracting whole region, thereby has reduced the specification demand of vacuum pump, finally realizes the reduction of energy consumption.

In order to realize the purpose of the invention, the utility model adopts the following technical scheme: a flat plate dehydrator with a round-robin vacuum pumping system comprises a material distribution mechanism, a conveying mechanism, a squeezing mechanism and a discharging mechanism, wherein the squeezing mechanism comprises a lower support part, a plurality of water outlets are formed in the lower support part and connected with a vacuum pumping system, the vacuum pumping system comprises a round-robin control station, the round-robin control station comprises branch gas pipes, one end of each branch gas pipe is connected with one water outlet, and the other end of each branch gas pipe is connected to a main pipeline; a branch gas pipe valve is arranged on the branch gas pipe and is in signal connection with the round-robin control station PLC; the main pipeline is connected to a vacuum tank, and the vacuum tank is connected with a vacuum pump.

The flat plate dehydrator with the round-robin vacuum pumping system designed by the technical scheme comprises a necessary material distribution mechanism, a conveying mechanism, a squeezing mechanism and a discharging mechanism, wherein the squeezing mechanism comprises a lower support part, a plurality of water outlets are formed in the lower support part, the arrangement positions of the water outlets can be in a matrix form, longitudinal and transverse intervals are formed among the water outlets, the water outlets can also be in a linear form arranged along the flowing direction of materials, transverse intervals are formed among the water outlets, the material distribution mode of the material distribution mechanism can also be in a matrix form, all materials are arranged longitudinally and transversely and can also be in a linear form, and gaps are formed in the head and tail arrangement of all the materials. Each water outlet corresponds to a material to form an independent vacuum-pumping area, and if parts such as a sealing frame are used as the sealing area division of the material, each water outlet is positioned in the framing area of the sealing frame. The water outlets are connected with the branch air pipes in a one-to-one correspondence mode, the other ends of the branch air pipes are connected to a main pipeline, the main pipeline is connected to a vacuum tank, and the vacuum tank is connected with a vacuum pump. The branch gas pipe is provided with a branch gas pipe valve which is controlled by a round-robin control station PLC to be opened and closed in sequence. After the material to be treated is distributed by the distributing mechanism and is conveyed to the squeezing mechanism by the conveying mechanism, the material to be treated is squeezed by physical squeezing and/or electroosmosis, and meanwhile, vacuum suction is assisted to suck and separate water in the material through the water outlet. The air and the moisture are pumped and separated to the branch air pipe and then are conveyed to the vacuum tank through the main pipeline, the moisture in the vacuum tank is retained at the bottom of the tank due to gravity, and the air is continuously pumped and separated by the vacuum pump. The water retained at the bottom of the tank is discharged according to the requirement. In the pumping process, the round-robin control station PLC realizes the sequential opening and closing of all branch air pipe valves, opens one branch air pipe valve each time, enables one branch air pipe to generate a vacuum pumping effect, and performs the vacuum pumping operation on an independent vacuum pumping area; and after the operation of one independent vacuumizing area is finished, closing the branch air pipe valve, and then opening the next branch air pipe valve to perform vacuumizing operation on the next independent vacuumizing area. And (3) after all the material blocks formed by one-time material distribution are vacuumized, the vacuumization work can be temporarily stopped, the squeezed materials are conveyed to the downstream side through the conveying mechanism, meanwhile, the next batch of materials to be processed is conveyed to the squeezing mechanism, and the operation is repeated. By using the scheme, because the target area of each vacuumizing is only one part of the squeezing mechanism, the full sucking can be realized only by the vacuum tank vacuum pump with small specification, and the energy consumption is remarkably saved on the premise of ensuring the sucking effect. The distribution mode and the distribution density of the water outlet are related to the water content of the material, the primary material distribution amount of the material distribution mechanism and the physical and/or electroosmosis pressing speed of the material, and can be specifically selected and determined by a person skilled in the art according to actual needs.

Preferably, the water outlets are even number and are sequentially arranged along the material flowing direction; the round-robin control station also comprises a plurality of sectional control valve groups; each subsection control valve group respectively controls 2 branch air pipe valves which are sequentially arranged; the segmented control valve group is in signal connection with the round-robin control station PLC. The scheme uses the sectional control valve group, and one sectional control valve group can control 2 branch gas pipe valves adjacent to each other in the front and the back. For the option that even number of water outlets and water outlets are arranged in sequence along the material flowing direction, a plurality of branch air pipe valves can be used for controlling twice the number of branch air pipes. All the sectional control valve groups can be set to be in a state to be started, after two branch air pipe valves controlled by the current sectional control valve group finish pumping in sequence, the first of the two branch air pipe valves controlled by the next sectional control valve group can be seamlessly opened in time, so that mechanical action delay is remarkably reduced, and the operation time is shortened. The cycle control station PLC can also control the time length and the interval time length when each branch air pipe valve is opened, the opening sequence of each branch air pipe valve and the like through the segmented control valve group, and in special cases, a plurality of branch air pipes, even all branch air pipes, are opened at the same time. The specific actual controls can be selected by those skilled in the art according to actual needs. The number of the water outlets can be determined according to the equipment condition, the number of the segmented control valve groups can be controlled to be at least 1, and when the number of the water outlets exceeds 2, the round-robin vacuum-pumping system can be realized. The sectional control valve group can be used for more flexibly controlling the opening and closing of the branch pipe valves and the interval time of the opening and closing.

Preferably, the number of the water outlets is 4, and the number of the segmented control valve banks is 2. From the comprehensive balance of multiple factors such as time, efficiency, processing capacity, processing effect, cost, occupied space and the like, the 4-water outlet and the 2-sectional control valve bank are usually selected according to the actual contacted equipment condition.

To sum up, the beneficial effects of the utility model are that: the vacuum extraction area is obviously reduced, and a mode of circularly extracting a local area replaces a mode of extracting the whole area at one time, so that the specification requirement of the vacuum pump is reduced, and finally the reduction of energy consumption is realized.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: the device comprises a material distribution mechanism A, a conveying mechanism B, a squeezing mechanism C, a lower supporting component C1, a water discharge port C2, a discharge mechanism D, a rack 1, a round-robin control station 2, a branch gas pipe valve 3, a main pipeline 4 and a vacuum tank 5.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

The embodiment shown in fig. 1 is a flat dewatering machine with a wheel-circulation vacuum-pumping system, which comprises a material distribution mechanism a, a conveying mechanism B, a squeezing mechanism C and a discharging mechanism D, wherein the squeezing mechanism comprises a lower supporting part C1, a plurality of water discharge openings C2 are arranged on the lower supporting part C1, and the water discharge openings C2 are connected with a vacuum-pumping system. In this embodiment, the distributing mechanism a, the conveying mechanism B, the squeezing mechanism C and the discharging mechanism D all adopt the prior art, 4 pieces of primary distributing of the distributing mechanism a are sequentially arranged in the front-back direction of the material flowing direction, correspondingly, 4 sealing frames (not shown in the figure) are arranged on the lower supporting component C1, each sealing frame can correspond to one material, and a water outlet C2 is arranged in the position defined by each sealing frame, so that 4 water outlets C2 are provided.

The drain port C2 is connected to a vacuum suction system. The vacuum pumping system comprises a circulation control station 2, a main pipeline 4, a vacuum tank 5 and a vacuum pump 6. Wherein, the round-robin control station 2 comprises 4 branch gas pipes 1 and 2 segmented control valve groups 7. One end of each branch air pipe 1 is connected to a water outlet C2, and the other end is connected to the main pipeline 4. Each branch gas pipe 1 is provided with 4 branch gas pipe valves 3; 2 segmentation control valves 7, 2 branch trachea valves 3 before one control, 2 branch trachea valves 3 behind another control make 4 branch trachea valves 3 divide into two sets of front and back. The segmented control valve group 7 is in signal connection with a round-robin control station PLC (not shown in the figure). The main line 4 is connected to a vacuum tank 5, and the vacuum tank 5 is connected to a vacuum pump 6.

When the flat plate dehydrator with the wheel circulation vacuumizing system is used, 4 pieces of cloth are distributed at one time by the cloth mechanism A and are sequentially arranged in a front-back straight line mode along the flowing direction of materials, then the materials are conveyed to the squeezing mechanism C by the filter belt in the conveying mechanism B, each piece of material correspondingly falls into the sealing frame on the lower supporting part C1, at the moment, the squeezing mechanism C works, the upper pressing part descends to the upper side of the sealing frame, and double squeezing of the materials and electroosmosis is carried out on the materials. At the same time, the vacuum pump 6 is switched on and the vacuum suction system starts working.

Compared with the prior flat-plate dehydrator without a round-robin vacuum pumping system under the same other conditions, the power of the vacuum pump motor reaches 15KW, but the vacuum degree is only 0.01MPa, in the scheme, the power of the vacuum pump motor only needs 5KW, but the vacuum degree can be stably maintained at 0.06MPa, and the energy-saving effect is remarkable.

Claims (3)

1. A flat plate dehydrator with a round-robin vacuum pumping system comprises a material distribution mechanism (A), a conveying mechanism (B), a squeezing mechanism (C) and a discharging mechanism (D), wherein the squeezing mechanism comprises a lower support part (C1), a plurality of water outlets (C2) are formed in the lower support part (C1), and the water outlets (C2) are connected with a vacuum pumping system, the flat plate dehydrator is characterized in that the vacuum pumping system comprises a round-robin control station (2), the round-robin control station (2) comprises branch air pipes (1), one end of each branch air pipe (1) is connected with one water outlet (C2), and the other end of each branch air pipe is connected to a main pipeline (4); a branch gas pipe valve (3) is arranged on the branch gas pipe (1), and the branch gas pipe valve (3) is in signal connection with the round-robin control station PLC; the main pipeline (4) is connected to a vacuum tank (5), and the vacuum tank (5) is connected with a vacuum pump (6).

2. The flat plate dehydrator with a round robin vacuum pumping system as claimed in claim 1 wherein, the number of the water outlets is even, and the water outlets are arranged in sequence along the material flowing direction; the round-robin control station (2) also comprises a plurality of sectional control valve groups (7); each subsection control valve group (7) respectively controls 2 branch gas pipe valves (3) which are sequentially arranged; the segmented control valve group (7) is in signal connection with the round-robin control station PLC.

3. The flat plate dehydrator according to claim 2, wherein the number of the water outlets is 4, and the number of the segmented control valve group (7) is 2.

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