CN210253116U - Novel slag discharging and draining device for hydraulic pulp washing - Google Patents
Novel slag discharging and draining device for hydraulic pulp washing Download PDFInfo
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- CN210253116U CN210253116U CN201920344416.3U CN201920344416U CN210253116U CN 210253116 U CN210253116 U CN 210253116U CN 201920344416 U CN201920344416 U CN 201920344416U CN 210253116 U CN210253116 U CN 210253116U
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Abstract
The utility model provides a novel slag discharging and draining device for hydraulic pulp washing, which is connected with a pulp outlet of a hydraulic pulp washing machine and comprises a material pipe connected with the pulp outlet, the material pipe is of a hollow structure, a manual valve and a first pneumatic valve are sequentially arranged from top to bottom, a sealing cavity is connected with the bottom of the material pipe, the sealing cavity is provided with a pressure transmitter, the top of the sealing cavity is provided with an air inlet for compressed air to enter, the air inlet is connected with a compressed air pipe, the bottom of the sealing cavity is provided with a second pneumatic valve, a slurry discharge port is arranged below the second pneumatic valve, a water discharge port is arranged at the bottom of the sealing cavity and above the second pneumatic valve, the water discharge port is connected with a return water pipe, and one end of the backflow water pipe close to the sealed cavity is provided with a drain valve, the output end of the backflow water pipe is communicated with the upper part of the pulp washer, and the pressure sensor, the drain valve and the pressure increasing valve are all connected with the PLC control system. The utility model discloses the number of times of opening and close of reducible valve prolongs the life of valve, promotes drainage efficiency.
Description
Technical Field
The utility model relates to a hydraulic washing thick liquid technical field specifically is a novel row's sediment drain device for hydraulic washing thick liquid, can use with the hydraulic pulp washer jointly.
Background
In municipal solid waste treatment, separation of impurities and organic materials by the buoyancy of water is currently the primary form of sorting. The mixed garbage enters a hydraulic pulp washer, light materials such as plastic, foam and the like float to the water surface under the action of buoyancy, materials with larger specific gravity such as silt, glass, stone, metal and the like can be precipitated to the bottom, and organic perishable materials are in a suspension state in water, and the hydraulic pulp washer separates different impurities in the municipal solid waste by utilizing the principle;
in the traditional hydraulic pulp washer, the conveyance of different materials after separation is completed through a grating and a screw; the floating light materials are fished out through the grating at the top, the organic perishable materials are conveyed through the spiral at the middle part, and the precipitated impurities at the bottom are conveyed out through the spiral.
The sand discharge mode of the current equipment has two modes, one mode is spiral discharge, in order to ensure no overflow, the spiral needs absolute sealing, and the spiral outlet needs to be higher than the liquid level of a pulp washer, so that at least 2 spirals are needed to complete the sand discharge, the equipment complexity is high, and the investment and operation cost is increased; the other method is that the material is discharged intermittently under the control of a gate valve, a section of closed space is arranged at the bottom of the pulp washer, the inlet and the outlet are controlled by valves, when heavy materials are deposited in the closed space at the bottom, the valve at the top is closed, the valve at the bottom is opened, after the heavy materials are removed, the valve at the bottom is closed again, the valve at the top is opened, and the primary deslagging process is completed. The mode can reduce the use of the screw, but the discharged materials have more water, and a water filtering screw is required to be added at the bottom; and the straight cylinder is a closed space with less material storage amount, so that the opening and closing frequency of the valve is high, and the valve is easy to damage.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel row's sediment waterlogging caused by excessive rainfall device for water washing thick liquid can use with water washing machine combines, and it is many to have solved prior art well valve and opened and close the number of times, and the running cost is high, the relatively poor technical problem of drainage effect.
The utility model adopts the following scheme: the material pipe is of a hollow structure, a manual valve and a first pneumatic valve are sequentially arranged on the material pipe from top to bottom, the manual valve and the first pneumatic valve are used for controlling the material pipe to be communicated with/sealed with the sealed cavity, a discharge port of the material pipe is connected with the sealed cavity, a pressure transmitter is arranged on one side of the upper portion of the sealed cavity, a high-pressure air inlet is arranged on one side without the pressure transmitter, a water outlet, a second pneumatic valve and a discharge port are sequentially arranged on the bottom of the sealed cavity from top to bottom, the water outlet is positioned on one side of the sealed cavity and is connected with a water return pipe, the water return pipe is connected with the upper portion of the pulp washer, and a water discharge valve is arranged on one side, close to the sealed cavity, of the water return pipe, the second pneumatic valve is used for controlling the opening/closing of a discharge port, and the discharge port is positioned at the bottom end of the sealed cavity;
the device comprises a compressed air pipe, wherein the compressed air pipe is arranged outside a sealed cavity, the input end of the compressed air pipe is connected with a high-pressure air source, the output end of the compressed air pipe extends out of three branch pipes, the three branch pipes are respectively connected with a first pneumatic valve, a high-pressure air inlet and a second pneumatic valve, and the branch pipe connected with the high-pressure air inlet is provided with a booster valve;
the automatic pressure transmitter, the drain valve and the pressure increasing valve are all connected with the automatic control system.
As a preferred embodiment, the drain opening is provided with a sieve.
In a preferred embodiment, the automatic control system is a PLC control system.
In a preferred embodiment, the first pneumatic valve and the second pneumatic valve are provided with travel positioning switches, and the travel positioning switches are connected with the PLC control system.
In a preferred embodiment, the material pipe is flanged to the hydrawasher.
In a preferred embodiment, the cross section of the sealed cavity is a polygon with more than four sides.
The utility model discloses a theory of operation: when the device is normally operated, the manual valve is normally opened, and when the device is in fault maintenance, the manual valve is temporarily closed, so that the device can be maintained and replaced;
when a hydraulic pulp washer (hereinafter referred to as a pulp washer) operates, a manual valve is normally opened, a first pneumatic valve is firstly opened, heavy materials in the pulp washer fall into a sealed cavity, when the sealed cavity is full of the heavy materials, the first pneumatic valve is closed, a drain valve is opened, a pressure increasing valve is opened, compressed air is introduced into the sealed cavity, and water in the sealed cavity returns to the pulp washer through a backflow water pipe under the action of pressure. The pressure transmitter detects the pressure condition in the sealed cavity, when the moisture in the sealed cavity is completely discharged, the pressure drop in the sealed cavity can be suddenly reduced, the automatic control system feeds back information at the moment, the second pneumatic valve is opened, the pressure increasing valve is closed at the same time, after impurities in the sealed cavity are discharged through the discharge port, the automatic control system closes the second pneumatic valve and opens the first pneumatic valve, the primary slag discharging process is completed, and the next slag discharging cycle is started; first pneumatic valve, second pneumatic valve are equipped with travel position switch, when closing or opening the in-process and meet the problem, can automatic repetition try start 3 troubleshooting, and when the trouble can't be got rid of, autonomous system has the warning and shows, reminds the operator to examine the clearance.
The utility model has the advantages that: the opening and closing times of the first pneumatic valve and the second pneumatic valve can be reduced by increasing the area of the seal cavity, so that the service life of the pneumatic valves is prolonged, and the operation cost is reduced; compressed air is discharged into the sealed cavity, so that the drainage efficiency can be improved, the running time can be shortened, a better drainage effect can be achieved, and the water content of discharged substances can be reduced; the filter screen is arranged at the front end of the drain valve, so that the drain valve is prevented from being blocked, and the faults are reduced; under the action of high-pressure gas, water discharged by the sealed cavity directly returns to the pulp washer without additional pipelines or equipment for conveying; the manual maintenance valve is arranged, so that the maintenance can be carried out in time when the fault occurs, the whole pulp washer does not need to be emptied during maintenance, the maintenance time is shortened, and the production efficiency is improved; the first pneumatic valve, the second pneumatic valve, the booster valve and the drain valve are automatically controlled, manual operation is not needed, the operation parameters can be continuously optimized through an intelligent automatic control system, and the production efficiency is further improved.
Drawings
Fig. 1 is a schematic plan view of the overall structure of an embodiment of the present invention.
In the figure: 1-a material pipe; 2-manual valve; 3-a first pneumatic valve; 4-sealing the cavity; 5-a pressure transmitter; 6-water outlet; 7-a second pneumatic valve; 8-a discharge port; 9-compressed air pipe; 10-a booster valve; 11-a filter screen; 12-a branch pipe; 13-a pulp washer; 14-a drain valve; 15-high pressure gas inlet; 16-backflow water pipe.
Detailed Description
Examples
Referring to fig. 1, a novel deslagging and draining device for hydraulic pulp washing is connected to a pulp outlet of a hydraulic pulp washer 13, and includes a material pipe 1 connected to the pulp outlet, where in this embodiment, the material pipe 1 is flange-connected to the pulp washer 13. The material pipe 1 is of a hollow structure, the material pipe 1 is sequentially provided with a manual valve 2 and a first pneumatic valve 3 from top to bottom, the lower end of the material pipe 1 is connected with a seal cavity 4, and the inner cavity of the seal cavity 4 serves as a sand storage cavity. In this embodiment, in order to increase the volume of the sealed cavity 4, the cross section of the sealed cavity 4 is a polygon with more than four sides. The manual valve 2 and the first pneumatic valve 3 are used for controlling the communication/sealing of the material pipe 1 and the sealed cavity 4, the manual valve 2 is closed, and the communication between the pulp washer 13 and the material pipe 1 can be directly closed, so that the manual valve 2 needs to be kept in an open state in the operation process, and the manual valve 2 needs to be closed only during maintenance.
Referring to the attached drawing 1, a pressure transmitter 5 is arranged on one side of the upper portion of the sealed cavity 4, a high-pressure air inlet 15 is arranged on one side where the pressure transmitter 5 is not arranged, a water outlet 6, a second pneumatic valve 7 and a material outlet 8 are sequentially arranged at the bottom of the sealed cavity 4 from top to bottom, the water outlet 6 is located on the side face of the sealed cavity 4, the water outlet 6 is connected with a backflow water pipe 16, a drain valve 14 is arranged on one side, close to the sealed cavity 4, of the backflow water pipe 16, a filter screen 11 is arranged on the water outlet 6, and the filter screen 11 is arranged in front. The moisture in the sealed cavity 4 is discharged through a water outlet 6 on the side surface of the bottom. Wherein the second pneumatic valve 7 is used for controlling the opening/closing of the material discharge port 8, and the material discharge port 8 is located at the bottom end of the sealed cavity 4, namely, the bottom end of the sealed cavity 4 is an open end. A storage bin can be arranged below the discharge opening 8 or an existing conveying device can be connected to convey the impurities discharged from the sealed cavity 4 to a designated place.
The air compressor further comprises a compressed air pipe 9, the compressed air pipe 9 is arranged outside the sealed cavity 4, the input end of the compressed air pipe 9 is connected with a high-pressure air source (not shown in the figure), the output end of the compressed air pipe extends to a direction close to the sealed cavity 4 to form three branch pipes 12, the three branch pipes 12 are respectively connected with the first pneumatic valve 3, the high-pressure air inlet 15 and the second pneumatic valve 7, a pressure increasing valve 10 is arranged on the branch pipe 12 connected with the high-pressure air inlet 15, and the pressure increasing valve 10 is used for controlling high-pressure air entering the sealed cavity 4; two branch lines 12 are connected to the first pneumatic valve 3 and the second pneumatic valve 7 in order to control the first pneumatic valve 3 and the second pneumatic valve 7. The first pneumatic valve 3 and the second pneumatic valve 7 are pneumatic valves in the prior art.
And the automatic control system (not shown) is further included, and the pressure transmitter 5, the drain valve 14 and the pressure increasing valve 10 are all connected with the automatic control system. In this embodiment, the automatic control system is a PLC control system. In order to increase the alarm prompting function, the first pneumatic valve 3 and the second pneumatic valve 7 are provided with travel positioning switches (not shown), and the travel positioning switches are connected with the PLC control system. When the first pneumatic valve 3 or the second pneumatic valve 7 is opened to the position or closed to the position, the travel positioning switch is triggered, for normal action, when the first pneumatic valve 3 or the second pneumatic valve 7 is blocked, the travel positioning switch cannot be triggered after the first pneumatic valve 3 or the second pneumatic valve 7 is closed, at the moment, the pressure of the first pneumatic valve 3 or the second pneumatic valve 7 reaches a limit value, information is fed back to the PLC control system, and the system starts to give an alarm.
The working principle of the embodiment is as follows: when the device is normally operated, the manual valve is normally opened, and when the device is in fault maintenance, the manual valve is temporarily closed, so that the device can be maintained and replaced;
when a hydraulic pulp washer (hereinafter referred to as a pulp washer) operates, a manual valve is normally opened, a first pneumatic valve is firstly opened, heavy materials in the pulp washer fall into a sealed cavity, when the sealed cavity is full of the heavy materials, the first pneumatic valve is closed, a drain valve is opened, a pressure increasing valve is opened, compressed air is introduced into the sealed cavity, and water in the sealed cavity returns to the pulp washer through a backflow water pipe under the action of pressure. The pressure transmitter detects the pressure condition in the sealed cavity, when the moisture in the sealed cavity is completely discharged, the pressure drop in the sealed cavity can be suddenly reduced, the automatic control system feeds back information at the moment, the second pneumatic valve is opened, the pressure increasing valve is closed at the same time, after impurities in the sealed cavity are discharged through the discharge port, the automatic control system closes the second pneumatic valve and opens the first pneumatic valve, the primary slag discharging process is completed, and the next slag discharging cycle is started; first pneumatic valve, second pneumatic valve are equipped with travel position switch, when closing or opening the in-process and meet the problem, can automatic repetition try start 3 troubleshooting, and when the trouble can't be got rid of, autonomous system has the warning and shows, reminds the operator to examine the clearance.
The beneficial effects of this embodiment: the opening and closing times of the first pneumatic valve and the second pneumatic valve can be reduced by increasing the area of the seal cavity, so that the service life of the pneumatic valves is prolonged, and the operation cost is reduced; compressed air is discharged into the sealed cavity, so that the drainage efficiency can be improved, the running time can be shortened, a better drainage effect can be achieved, and the water content of discharged substances can be reduced; the filter screen is arranged at the front end of the drain valve, so that the drain valve is prevented from being blocked, and the faults are reduced; under the action of high-pressure gas, water discharged by the sealed cavity directly returns to the pulp washer without additional pipelines or equipment for conveying; the manual maintenance valve is arranged, so that the maintenance can be carried out in time when the fault occurs, the whole pulp washer does not need to be emptied during maintenance, the maintenance time is shortened, and the production efficiency is improved; the first pneumatic valve, the second pneumatic valve, the booster valve and the drain valve are automatically controlled, manual operation is not needed, the operation parameters can be continuously optimized through an intelligent automatic control system, and the production efficiency is further improved.
Claims (6)
1. A novel slag discharging and draining device for hydraulic pulp washing is characterized by being connected with a pulp outlet of a hydraulic pulp washing machine and comprising a material pipe connected with the pulp outlet, wherein the material pipe is of a hollow structure, a discharge hole of the material pipe is connected with a sealed cavity, the material pipe is sequentially provided with a manual valve and a first pneumatic valve from top to bottom, the first pneumatic valve is used for controlling the communication/sealing of the material pipe and the sealed cavity, one side of the upper part of the sealed cavity is provided with a pressure transmitter, one side without the pressure transmitter is provided with a high-pressure air inlet, the bottom of the sealed cavity is sequentially provided with a water outlet, a second pneumatic valve and a material outlet from top to bottom, the water outlet is positioned at one side of the sealed cavity and is connected with a water return pipe, the water return pipe is connected with the upper part of the pulp washing machine, and one side, close to the sealed cavity, the second pneumatic valve is used for controlling the opening/closing of a discharge port, and the discharge port is positioned at the bottom end of the sealed cavity;
the device comprises a compressed air pipe, wherein the compressed air pipe is arranged outside a sealed cavity, the input end of the compressed air pipe is connected with a high-pressure air source, the output end of the compressed air pipe extends out of three branch pipes, the three branch pipes are respectively connected with a first pneumatic valve, a high-pressure air inlet and a second pneumatic valve, and the branch pipe connected with the high-pressure air inlet is provided with a booster valve;
the automatic pressure transmitter, the drain valve and the pressure increasing valve are all connected with the automatic control system.
2. The new slagging and draining apparatus for hydrowashing according to claim 1, wherein said drain outlet is provided with a sieve.
3. The new slagging and draining apparatus for water power pulp washing according to claim 1 or 2, wherein the automatic control system is a PLC control system.
4. The novel deslagging and draining device for water power pulp washing according to claim 3, wherein the first pneumatic valve and the second pneumatic valve are provided with stroke positioning switches, and the stroke positioning switches are connected with the PLC control system.
5. The new slagging and draining apparatus for hydrowasher according to claim 4, wherein the feed pipe is flanged to the hydrowasher.
6. The novel deslagging and draining device for water power washing of claim 1, wherein the cross section of the sealed cavity is a polygon with more than four sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920344416.3U CN210253116U (en) | 2019-03-19 | 2019-03-19 | Novel slag discharging and draining device for hydraulic pulp washing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920344416.3U CN210253116U (en) | 2019-03-19 | 2019-03-19 | Novel slag discharging and draining device for hydraulic pulp washing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210253116U true CN210253116U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920344416.3U Active CN210253116U (en) | 2019-03-19 | 2019-03-19 | Novel slag discharging and draining device for hydraulic pulp washing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210253116U (en) |
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2019
- 2019-03-19 CN CN201920344416.3U patent/CN210253116U/en active Active
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