Unpacking, size mixing and filtering device

Abstract

The utility model relates to the technical field of copper smelting soot size mixing, in particular to an unpacking, size mixing and filtering device. The conical unpacking device can cut the package when making contact with the ton bag, and the step of manual bag opening is omitted. The stirring mode is boat type stirring, so that the paddle type stirring resistance can be reduced, the superflow of the speed reducer is avoided, and the maintenance frequency is reduced; the multi-stage filtering device is arranged, through multi-stage filtering, large materials and other impurities in the cigarette ash can be removed through the first-stage filtering device and the second-stage filtering device, slurry at an inlet of the pump is smooth, the conveying pump can stably operate for a long period, the maintenance frequency is changed from original one or two times per week to eight months at present, and after the filter materials are full, the maintenance efficiency is improved. The primary filtering device can be lifted out for cleaning at any time, is convenient and fast, and can be continuously used in a short time; by additionally arranging the back-flushing pipeline, if the liquid outlet of the size mixing tank is blocked by soot and mud, size discharging is not smooth and the like, a valve of the back-flushing pipeline can be opened for back-flushing, the frequency of disassembling the pipeline is reduced, and smooth production is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of copper smelting soot pulp mixing, in particular to an unpacking pulp mixing and filtering device. Background Technique

[0002] Copper smelting soot is one of the main wastes in the copper smelting industry, containing valuable metals such as gold, silver, copper, lead, antimony, bismuth, and zinc. At present, the most common comprehensive utilization method is to comprehensively process copper smelting soot to recover valuable metal elements such as copper, gold, silver, lead, and zinc. The commonly used treatment processes mainly include pyrometallurgical processes, hydrometallurgical processes, pyro-hydrometallurgical combined processes, and hydro-pyrometallurgical combined processes. The pyrometallurgical process means that the soot is directly smelted to make lead, bismuth, and precious metals enter the crude lead, copper is enriched in the matte phase, and high-arsenic soot is produced after arsenic volatilizes, which has problems such as high energy consumption and environmental pollution. The hydrometallurgical process means that after the copper soot is leached with acid, neutral or alkaline, copper, zinc, and arsenic enter the leaching solution, lead and bismuth enter the leaching residue, and the leaching residue is then acid-leached to recover valuable metals. The pyro-hydrometallurgical combined process means that methods such as roasting are used to volatilize arsenic into the soot, and at the same time, metals such as copper and zinc are converted into soluble forms, and then the valuable metals such as copper and zinc are leached and separated. The leaching residue is enriched with valuable metals such as lead and bismuth. The hydro-pyrometallurgical combined process means that the copper, arsenic, and zinc are dissolved into the leaching solution by leaching with a sulfuric acid system. After the leaching solution is dearsenified, copper and zinc are separated and extracted. The leaching residue is reduced and smelted to enrich lead and bismuth in the crude lead, which is the most commonly used process in China at present.

[0003] For the hydro + pyro process, first, the copper smelting soot needs to be pulp-mixed. The soot is packed in ton bags, and other metals or lumpy impurities are scattered and mixed during the packing process. At present, the unpacking work of ton bags is generally mainly manual unpacking. In order to facilitate manual operation, the ton bag must be lifted by a crane a certain height above the ground, and then a cutting tool is used to cut open the ton bag to let the goods in the ton bag pour out. This manual unpacking has many disadvantages: first, the labor intensity of personnel is very high and the production efficiency is low; second, the dust will cause a significant decrease in the visibility of the entire production site, bringing safety hazards to the crane operation and serious occupational disease hazards to the operating personnel. Moreover, this method has a large labor intensity of employees and serious on-site material scattering, resulting in a poor on-site environment; third, the consumption of cutting tools is relatively large. The most practical current cutting tool is a craft knife, and at least about 10 blades need to be replaced every day; fourth, the safety is not high. Personnel stand on the grille to cut the bag, and workers are prone to fall and the tool is prone to injure hands; moreover, the lumpy materials will cause incomplete pulp mixing, resulting in phenomena such as pump and pipeline blockage, and the equipment cannot operate in a long cycle, and the pump damage rate is high, resulting in production stagnation. Content of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides an unpacking pulp mixing and filtering device, which specifically includes the following content:

[0005] An unpacking, sizing and filtering device, comprising an unpacking and sizing system, a filtering system, a discharging and backwashing system.

[0006] The unpacking and sizing system includes a tank body, a stirring device and an unpacking device. An inlet is provided at the top of the tank body, and a conical unpacking device with the blade facing upward is arranged above the inlet. The conical unpacking device can cut open the package when contacting with the ton bag, saving the step of manually opening the bag. A liquid supplement pipe, a backwash pipe, a stirring reserved port and a sizing conveying port are also arranged on the tank body. The discharging end of the backwash pipe is arranged inside the tank body and above the sizing conveying port. The backwash pipe can be opened for backwashing to dredge the blockage when the sizing conveying port is blocked. The stirring device includes a power device, a stirring shaft and stirring paddles. The power device is arranged outside the tank body, the stirring paddles are arranged inside the tank body, one end of the stirring shaft is connected to the power device, and the other end passes through the stirring reserved port and is connected to the stirring paddles. The stirring paddles include at least one first arc-shaped stirring blade and at least one second arc-shaped stirring blade that are cross-connected to each other, and a plurality of reinforcing rods. The cross-connection part of the first arc-shaped stirring blade and the second arc-shaped stirring blade is connected to the end of the stirring shaft. One end of the reinforcing rod is connected to the stirring shaft, and the other end is connected to the first arc-shaped stirring blade and / or the second arc-shaped stirring blade. Both the first arc-shaped stirring blade and the second arc-shaped stirring blade are bent upward. The length of the first arc-shaped stirring blade is 1 / 2 - 2 / 3 of the width of the tank body, and the radian is 120° - 180°; the length of the second arc-shaped stirring blade is 1 / 5 - 1 / 2 of the width of the tank body, and the radian is 60° - 150°. In the present utility model, the shape and arc of the stirring paddles are set because this can minimize the resistance of stirring to the greatest extent. Two specifications of stirring blades are set to ensure that the stirring can be more sufficient and uniform. The radian of the first stirring blade and the second stirring blade is within a certain range because through experimental verification, within these two ranges, the stirring efficiency and effect are the best. The present utility model reasonably sets the shape and size of the stirring paddles, which can minimize the stirring resistance to the greatest extent, effectively avoid the overcurrent of the speed reducer; the function of the reinforcing rod is to increase the strength of the stirring blade.

[0007] The filtering system includes a box body, a first pipeline system, a secondary filtering device arranged in the box body, and a primary filtering device arranged in the secondary filtering device. The box body, the secondary filtering device and the primary filtering device are all open at the upper end. The inlet of the first pipeline system is connected to the sizing conveying port on the tank body, and the outlet of the first pipeline system is arranged above the primary filtering device; the slurry is conveyed from the first pipeline system to the primary filtering device for the first-stage filtering to intercept larger-size impurities, and then enters the secondary filtering device for the second-stage filtering, with higher and more thorough filtering efficiency.

[0008] The discharging and backwashing system includes a discharging pump and a discharging pipe. The inlet of the discharging pump is connected to the box body, and the outlet of the discharging pump is respectively connected to the discharging pipe and the backwashing pipe.

[0009] Preferably, the unpacking and pulp mixing system further includes a feeding cylinder. The upper end of the feeding cylinder is in the shape of a funnel with a larger top and a smaller bottom, and the lower end is connected to the inlet of the tank body. The conical unpacking device is a cross-conical unpacking device, and the cross-conical unpacking device is arranged above the feeding cylinder. The funnel-shaped upper end of the feeding cylinder is more convenient for feeding and is not easy to spill.

[0010] Preferably, the unpacking and pulp mixing system further includes a temperature measuring device, and the temperature measuring end of the temperature measuring device is arranged inside the tank body. The specific structure and type of the temperature measuring device can be selected and designed according to actual needs.

[0011] Preferably, the power device includes a motor and a speed reducer. The input end of the speed reducer is connected to the motor, and the output end is connected to the transmission shaft. The distance from the lowest point of the stirring paddle to the bottom of the tank body is 1 / 5 - 1 / 2 of the height of the tank body.

[0012] Preferably, the discharging end of the backwashing pipe is arranged 100 - 300 mm directly above the pulp mixing and conveying port. Reasonably setting the height and position of the backwashing pipe can ensure better backwashing effect.

[0013] Preferably, a human-shaped inspection hole and a sewage discharge port are also opened on the tank body. The human-shaped inspection hole is opened on the side wall of the tank body, and the sewage discharge port is arranged at the lower part of the side wall of the tank body.

[0014] Preferably, a baffle is respectively arranged inside a set of opposite side walls of the box body. The secondary filtering device is a secondary filtering box with multiple precision filtering holes. Hanging plates are respectively arranged on the outer edges of the upper ends of a set of opposite side walls of the secondary filtering box, and the secondary filtering box is hung on the baffle inside the box body through the hanging plates. The primary filtering device is a primary filtering box with multiple primary filtering holes. Multiple legs are arranged at the bottom of the primary filtering box, and the primary filtering box is arranged inside the secondary filtering box.

[0015] Preferably, the distance between the periphery and the bottom of the secondary filtering box and the inner wall of the box body is 150 - 200 mm. The distance between the periphery and the bottom of the primary filtering box and the inner wall of the secondary filtering box is 100 - 150 mm. Preferably, the aperture of the precision filtering hole is 35 - 45 mm, and the aperture of the primary filtering hole is 55 - 65 mm. Reasonably setting the distances between the box body, the secondary filtering box, and the primary filtering box, as well as the aperture of the filtering holes, is beneficial to improving the filtering efficiency and preventing blockage.

[0016] Preferably, at least one set of second lifting lugs is further provided on the secondary filtration tank; at least one set of first lifting lugs is further provided on the primary filtration tank. The first and second lifting lugs facilitate lifting out the primary filtration tank and the secondary filtration tank when it is necessary to clean the filtration tank.

[0017] Preferably, the first pipeline system includes a first stub connected to the slurry transfer port of the tank body, a box body feed pipe connected to the stub, and a second stub connected to the box body feed pipe. The discharge end of the second stub is arranged above the primary filtration device; a pressure transmitter is provided on the first stub, and a slurry transfer valve is provided on the box body feed pipe.

[0018] Preferably, the box body is provided with a box body discharge port. The discharge pump is connected to the box body discharge port through a box body discharge pipe, and a discharge valve is provided on the box body discharge pipe; a discharge valve and a backwash valve are respectively provided on the discharge pipe and the backwash pipe.

[0019] Advantages of the present utility model:

[0020] (1) For the unpacking, slurry mixing and filtering device disclosed by the present utility model, the unpacking and slurry mixing system is provided with a conical unpacking device with the blade facing upward. The conical unpacking device can cut open the packaging when contacting the ton bag, eliminating the step of manually opening the bag. Personnel do not need to perform high-position operations, the working environment is good, potential safety hazards are eliminated, and the labor intensity is greatly reduced. Only normal feeding inspection is required.

[0021] (2) The stirring method of the unpacking, slurry mixing and filtering device disclosed by the present utility model is preferably ship-type stirring, which can reduce the resistance of slurry stirring, avoid overcurrent of the speed reducer, and reduce the maintenance frequency.

[0022] (3) The unpacking, slurry mixing and filtering device disclosed by the present utility model is provided with a multi-stage filtering device. Through multi-stage filtering, large pieces of materials and other sundries in the soot can be removed by the primary and secondary filtering devices, ensuring smooth slurry at the pump inlet and enabling the long-term stable operation of the transfer pump. The maintenance frequency has been reduced from once or twice a week originally to once every eight months. After the filter is full, the primary filtering device can be lifted out for cleaning at any time, which is convenient and fast, and can be used again in a short time.

[0023] (4) By adding a backwash pipeline, if the outlet of the slurry mixing tank is blocked by soot slurry, resulting in unsmooth slurry discharge, etc., the backwash pipeline valve can be opened for backwashing, reducing the frequency of pipeline disassembly and ensuring the smooth progress of production. Since the implementation of this system, the problem of unsmooth operation of the slurry mixing system has been fundamentally solved, the labor intensity of workers has been greatly reduced, the working environment has been improved. Originally, three people were required for operation, but now only one person is needed. The system is simple and fast to maintain and is worthy of popularization. Description of the Drawings

[0024] Figure 1 This is a schematic structural diagram of the unpacking, pulp mixing and filtering device disclosed by the present utility model;

[0025] Figure 2 This is a three-dimensional view of the primary filtering device in the device disclosed by the present utility model;

[0026] Figure 3 This is a three-dimensional view of the secondary filtering device in the device disclosed by the present utility model;

[0027] Figure 4 This is a three-dimensional view of the stirring paddle in the device disclosed by the present utility model. Specific embodiments

[0028] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments shown below do not limit the content of the utility model recorded in the claims in any way. In addition, all the contents shown in the following embodiments are not limited to what is necessary for the solution of the utility model recorded in the claims.

[0029] Refer to the attached Figures 1-4 , an unpacking, pulp mixing and filtering device, comprising an unpacking and pulp mixing system, a filtering system, and a discharging and backwashing system. The unpacking and pulp mixing system includes a tank body 8, a stirring device, and an unpacking device 2. The top of the tank body 8 is provided with a feed inlet, and above the feed inlet is provided a conical unpacking device 2 with the blade facing upward. The conical unpacking device 2 can cut open the packaging when contacting the ton bag, saving the step of manually opening the bag; the tank body 8 is also provided with a liquid supplement pipe 9, a backwashing pipe 11, a stirring reserved port, and a pulp mixing and conveying port 12. The discharging end of the backwashing pipe 11 is arranged inside the tank body 8 and above the pulp mixing and conveying port 12. The backwashing pipe 11 can be opened for backwashing when the pulp mixing and conveying port 12 is blocked to unclog the blockage; the stirring device includes a power device, a stirring shaft 4, and a stirring paddle 5. The power device is arranged outside the tank body 8, the stirring paddle 5 is arranged inside the tank body 8, one end of the stirring shaft 4 is connected to the power device, and the other end passes through the stirring reserved port and is connected to the stirring paddle 5; the stirring paddle includes at least one first arc-shaped stirring blade 51 and at least one second arc-shaped stirring blade 52 that are cross-connected to each other, and a plurality of reinforcing rods 53. The cross-connection part of the first arc-shaped stirring blade 51 and the second arc-shaped stirring blade 52 is connected to the end of the stirring shaft. One end of the reinforcing rod 53 is connected to the stirring shaft, and the other end is connected to the first arc-shaped stirring blade 51 and / or the second arc-shaped stirring blade 52. Figure 4Shown is a situation where one end of the same reinforcing rod is connected to the stirring shaft, the end of the other end is connected to the first arc-shaped blade, and the middle of the other end is connected to the second arc-shaped blade; in the present invention, it is also possible that one end of some reinforcing rods is connected to the stirring shaft and the other end is connected to the first arc-shaped blade, while one end of some reinforcing rods is connected to the stirring shaft and the other end is connected to the second arc-shaped blade; or both of the above situations exist simultaneously. The specific setting methods of the reinforcing rods, the first arc-shaped blades, and the second arc-shaped blades only need to meet the limitations described above, and other details can be set according to actual needs and will not be limited too much here; the first arc-shaped stirring blade 51 and the second arc-shaped stirring blade 52 are both bent upward, the length of the first arc-shaped stirring blade 51 is 1 / 2 - 2 / 3 of the width of the tank body, and the radian is 120° - 180°; the length of the second arc-shaped stirring blade 52 is 1 / 5 - 1 / 2 of the width of the tank body, and the radian is 60° - 150°; the present invention sets the shape and arc of the stirring paddle because this can minimize the resistance of stirring to the greatest extent. By setting two specifications of stirring blades, it can ensure that the stirring is more sufficient and uniform. Setting the radian of the first stirring blade and the second stirring blade within a certain range is because through experimental verification, within these two ranges, the stirring efficiency and effect are the best. The present invention reasonably sets the shape and size of the stirring paddle, which can minimize the stirring resistance to the greatest extent and can effectively avoid the overcurrent of the speed reducer; the function of the reinforcing rod 5353 is to increase the strength of the stirring blade; the filtering system includes a box body 18, a first pipeline system, a secondary filtering device 19 arranged in the box body 18, and a primary filtering device 20 arranged in the secondary filtering device 19. The box body 18, the secondary filtering device 19, and the primary filtering device 20 are all open at the upper end. The feed port of the first pipeline system is connected to the slurry mixing and conveying port 12 on the tank body 8, and the discharge port of the first pipeline system is arranged above the primary filtering device 20; the slurry is conveyed from the first pipeline system to the primary filtering device 20 for a first filtration to intercept larger-sized impurities, and then enters the secondary filtering device 19 for a second filtration, with higher and more thorough filtration efficiency; the discharging and backwashing system includes a discharging pump 22 and a discharging pipe 24. The feed port of the discharging pump 22 is connected to the box body 18, and the discharge port of the discharging pump 22 is respectively connected to the discharging pipe 24 and the backwashing pipe 11.

[0030] In some embodiments of the present invention, the unpacking and slurry mixing system further includes a feeding cylinder 1. The upper end of the feeding cylinder 1 is in the shape of a funnel with a larger upper part and a smaller lower part, and the lower end is connected to the feed port of the tank body 8; the conical unpacking device 2 is a cross-conical unpacking device, and the cross-conical unpacking device is arranged above the feeding cylinder 1. The upper end of the feeding cylinder 1 being in the shape of a funnel is more convenient for feeding and is not easy to spill.

[0031] In some embodiments of the present utility model, the unpacking and sizing system further includes a temperature measuring device 10, and the temperature measuring end of the temperature measuring device 10 is arranged inside the tank body 8. The specific structure and type of the temperature measuring device 10 can be selected and designed according to actual needs.

[0032] In some embodiments of the present utility model, the power device includes a motor and a speed reducer 3. The input end of the speed reducer 3 is connected to the motor, and the output end is connected to the transmission shaft. The distance from the lowest point of the stirring paddle 5 to the bottom of the tank body 8 is 1 / 5 - 1 / 2 of the height of the tank body 8. Reasonably setting the shape and height of the stirring paddle 5 can reduce the stirring resistance and avoid overcurrent of the speed reducer 3.

[0033] In some embodiments of the present utility model, the discharge end of the backflush pipe 11 is arranged 100 - 300 mm directly above the sizing conveying port 12. Reasonably setting the height and position of the backflush pipe 11 can ensure better backflush effect.

[0034] In some embodiments of the present utility model, a human-shaped maintenance hole 6 and a sewage outlet 7 are further opened on the tank body 8. The human-shaped maintenance hole 6 is opened on the side wall of the tank body 8, and the sewage outlet 7 is arranged at the lower part of the side wall of the tank body 8.

[0035] In some embodiments of the present utility model, a baffle X is respectively arranged inside a set of opposite side walls of the box body 18. The secondary filtration device 19 is a secondary filtration box with a plurality of precision filtration holes O. Hanging plates Y are respectively arranged on the outer edges of the upper ends of a set of opposite side walls of the secondary filtration box. The secondary filtration box is hung on the baffle X inside the box body 18 through the hanging plates Y. The primary filtration device 20 is a primary filtration box with a plurality of primary filtration holes P. A plurality of legs K are arranged at the bottom of the primary filtration box. The primary filtration box is arranged inside the secondary filtration box.

[0036] In some embodiments of the present utility model, the distance between the periphery and the bottom of the secondary filtration box and the inner wall of the box body 18 is 150 - 200 mm. The distance between the periphery and the bottom of the primary filtration box and the inner wall of the secondary filtration box is 100 - 150 mm. Preferably, the aperture of the precision filtration hole O is 35 - 45 mm. The aperture of the primary filtration hole P is 55 - 65 mm. Reasonably setting the distances between the box body 18, the secondary filtration box, and the primary filtration box, as well as the aperture of the filtration holes, is beneficial to improving the filtration efficiency and preventing blockage.

[0037] In some embodiments of the present utility model, at least one set of second lifting lugs J is further arranged on the secondary filtration box. At least one set of first lifting lugs H is further arranged on the primary filtration box. The arrangement of the first lifting lugs H and the second lifting lugs J facilitates lifting out the primary filtration box and the secondary filtration box when it is necessary to clean the filtration box.

[0038] In some embodiments of the present utility model, the first pipeline system includes a first short pipe 13 connected to the pulp mixing and conveying port 12 of the tank body 8, a box body feed pipe 16 connected to the short pipe, and a second short pipe 17 connected to the box body feed pipe 16. The discharge end of the second short pipe 17 is arranged above the primary filtration device 20; a pressure transmitter 14 is arranged on the first short pipe 13, and a pulp mixing and conveying valve 15 is arranged on the box body feed pipe 16.

[0039] In some embodiments of the present utility model, the box body 18 is provided with a box body discharge port 25. The discharge pump 22 is connected to the box body discharge port 25 through a box body discharge pipe 24, and a discharge valve 21 is arranged on the box body discharge pipe 24; the discharge port of the discharge pump 22 is connected to a pump outlet pipe 23. The pump outlet pipe 23 is respectively connected to the discharge pipe 24 and the backflush pipe 11 through a tee joint, and a discharge valve N and a backflush valve M are respectively arranged on the discharge pipe 24 and the backflush pipe 11.

[0040] In some embodiments of the present utility model, the soot pulp mixing system includes a tank body 8, a feeding cylinder 1, a cross-conical unpacking device 2, a speed reducer 3, a stirring shaft 4, stirring paddles 5, a liquid supplement pipe 9, a temperature measuring device 10, a backflush pipe 11, a human-shaped inspection hole 6, a sewage discharge port 7, a pulp mixing and conveying port 12, a first short pipe 13, a pressure transmitter 14, and a pulp mixing and conveying valve 15.

[0041] In some embodiments of the present utility model, the filtration system includes a box body 18, a pair of wedge-shaped baffles X, a box body feed pipe 16, a second short pipe 17, a secondary filtration device 19, a pair of hanging plates Y, four second lifting lugs J, a number of precision filtration holes O, a primary filtration device 20, a pair of first lifting lugs H, four legs K, a number of primary filtration holes P, a box body discharge port 25, and a filtrate discharge valve 21.

[0042] In some embodiments of the present utility model, the material of the tank body 8 is 316L; the materials of the feeding cylinder 1 and the cross-conical unpacking device 2 are 316L; the feeding cylinder 1 is flange-connected to the tank body 8.

[0043] In some embodiments of the present utility model, the materials of the stirring shaft 4 and the stirring paddles 5 are 316L, and the lowest point of the stirring paddles 5 is located at one-third above the bottom of the tank body 8.

[0044] In some embodiments of the present utility model, the liquid supplement pipe 9 is made of steel lined with PO; the temperature measuring device 10 is a thermocouple thermometer with a stainless steel 316L outer tube; the material of the backflush pipe 11 is 316L. The backflush pipe 11 is installed close to the tank body 8 and the pipe orifice is located 200 mm directly above the pulp mixing and conveying port 12. The material of the discharge pipe 24 is 316L.

[0045] In some embodiments of the present utility model, the first jumper 13 is made of 316L. The first jumper 13 is connected to the sizing conveying port 12 by a flange. A pressure transmitter 14 is installed on the first jumper 13, and the connection method between the first jumper 13 and the pressure transmitter 14 is flange connection. The sizing conveying valve 15 is a 316L ball valve.

[0046] In some embodiments of the present utility model, the box body 18 is an upper-opening cuboid made of 316L; a wedge-shaped 316L baffle X is welded on each of the east and west sides at the quarter position from top to bottom of the box body 18; the installation position of the box body feed pipe 16 is above the wedge-shaped baffle X, and the box body feed pipe 16 penetrates the box body 18, and the connection method with the box body 18 is welding.

[0047] In some embodiments of the present utility model, the connection method between the second jumper 17 and the box body feed pipe 16 is flange connection, and the box body feed pipe 16 and the second jumper 17 are made of 316L.

[0048] In some embodiments of the present utility model, the secondary filtration device 19 is made of 316L. The secondary filtration device 19 is an upper-opening cuboid, and hanging plates Y are welded at the east and west positions at the top of the device. Two second lifting lugs J are welded on each of the north and south sides of the device. The outer edge Y and the second lifting lugs J are both made of 316L. A number of precision filtration holes O are opened on all surfaces of the secondary filtration device 19, and the aperture is 35 - 45mm and arranged irregularly.

[0049] In some embodiments of the present utility model, the primary filtration device 20 is made of 316L. The primary filtration device 20 is an upper-opening cuboid. A first lifting lug H is welded on each of the east and west sides of the primary filtration device 20, and four legs K are welded at the bottom of the device. A number of primary filtration holes P are opened on all surfaces of the device 20, and the aperture is 55 - 65mm and arranged irregularly. The first lifting lug H and the legs K are both made of 316L. The drain valve 21 is a 316L ball valve.

[0050] In some embodiments of the present utility model, the box body 20 is placed inside the box body 19, the box body 19 is placed inside the box body 18, and the outer edge Y of the box body 19 is placed exactly on the X of the box body 18, so that the overall gap distance between the outside of the box body 19 and the inside of the box body 18 is 150 - 200mm, and the overall gap distance between the outside of the box body 20 and the inside of the box body 19 is 100 - 150mm. The overall installation height of the box body 20 and the box body 19 is the same as that of the wedge-shaped baffle X.

[0051] In some embodiments of the present utility model, the discharge pump 22 is an alloy pump, the pump outlet pipe 23 is made of 316L, and the pump outlet pipe 23 is respectively connected to the backflush valve M and the discharge valve N. The backflush valve M is connected to the pump outlet pipe 23 and the backflush pipe 11, and the discharge valve N is connected to the pump outlet pipe and the discharge pipe 24.

[0052] In some embodiments of the present utility model, the connection modes of the liquid supplement pipe 9, the sleeve of the temperature measuring device 10, and the backflush pipe 11 to the tank body 8 are all flange connections.

[0053] When the device is in use, liquid is injected through the liquid supplement pipe. After the liquid level covers the agitator, start the agitation, and then add the soot by breaking the bag through the cross cone in the feeding cylinder. After the addition of the soot is completed, perform the pulp mixing operation. After reacting for a certain period of time, open the pulp mixing and conveying valve, and adjust the valve opening through the pressure transmitter to ensure the normal discharge of the slurry. After passing through the two-stage filtration device, it is pumped out through the delivery pump. If large pieces of materials or debris appear in the first-stage filtration device, they can be directly fished out and cleaned manually without affecting the operation of the filtration system. After long-term operation, if the second-stage filtration device has problems such as material blockage, disconnect and remove the inlet pipe, lift out the first-stage filtration device, and directly clean the second-stage filtration device. After cleaning, the production can be resumed shortly after installing the first-stage filtration device. If the slurry flow rate is small after the pulp mixing and conveying valve is fully opened, the production can be continuously carried out by closing the drain pipe valve, opening the backflush pipe valve, and starting the delivery pump for backflush operation, thus ensuring the long-term stable operation of the equipment.

[0054] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0055] Unless otherwise clearly defined and limited, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An unpacking slurry mixing and filtering device, characterized in that: Including unpacking and slurry mixing system, filtration system, discharging and backwashing system, The unpacking and slurry mixing system comprises a tank body, a stirring device, and an unpacking device. A feed port is provided on the top of the tank body, and a conical unpacking device with a knife edge facing upward is provided above the feed port; a liquid replenishment pipe, a recoil pipe, a stirring reserved port, and a slurry mixing delivery port are also provided on the tank body, and the discharge end of the recoil pipe is arranged inside the tank body and above the slurry mixing delivery port; the stirring device comprises a power device, a stirring shaft, and a stirring paddle, the power device is arranged outside the tank body, the stirring paddle is arranged inside the tank body, one end of the stirring shaft is connected to the power device, and the other end passes through the stirring reserved port and is connected to the stirring paddle; the stirring paddle comprises mutually interlaced At least one first arc-shaped stirring blade and at least one second arc-shaped stirring blade connected in a fork, and a plurality of reinforcing rods, wherein the cross-connection between the first arc-shaped stirring blade and the second arc-shaped stirring blade is connected to the end of the stirring shaft, one end of the reinforcing rod is connected to the stirring shaft, and the other end is connected to the first arc-shaped stirring blade and / or the second arc-shaped stirring blade; the first arc-shaped stirring blade and the second arc-shaped stirring blade are both bent upward, the length of the first arc-shaped stirring blade is 1 / 2-2 / 3 of the width of the tank body, and the curvature is 120°-180°; the length of the second arc-shaped stirring blade is 1 / 5-1 / 2 of the width of the tank body, and the curvature is 60°-150°; The filtering system comprises a box, a first pipeline system, a secondary filtering device arranged in the box, and a primary filtering device arranged in the secondary filtering device, the box, the secondary filtering device, and the primary filtering device are all opened at the upper ends, the feed inlet of the first pipeline system is connected to the slurry conveying port on the tank body, and the discharge port of the first pipeline system is arranged above the primary filtering device; The discharging and backwashing system comprises a discharging pump and a discharging pipe, the feed port of the discharging pump is connected to the box body, and the discharging port of the discharging pump is connected to the discharging pipe and the backwashing pipe respectively.

2. The unpacking slurry mixing and filtering device according to claim 1, characterized in that: The unpacking and slurry mixing system also includes a feeding barrel, the upper end of which is in the shape of a funnel with a larger top and a smaller bottom, and the lower end is connected to the feed port of the tank body; the conical unpacking device is a cross-conical unpacking device, and the cross-conical unpacking device is arranged above the feeding barrel.

3. The unpacking slurry mixing and filtering device according to claim 1, characterized in that: The unpacking and slurry mixing system also includes a temperature measuring device, and a temperature measuring end of the temperature measuring device is arranged inside the tank body.

4. The unpacking slurry mixing and filtering device according to claim 1, characterized in that: The power device comprises a motor and a reducer, the input end of the reducer is connected to the motor, and the output end is connected to the transmission shaft; the distance from the lowest point of the stirring paddle to the bottom of the tank body is 1 / 5-1 / 2 of the height of the tank body.

5. The unpacking slurry mixing and filtering device according to claim 1, characterized in that: The discharge end of the recoil pipe is arranged 100-300 mm above the slurry conveying port.

6. The unpacking slurry mixing and filtering device according to claim 1, characterized in that: The tank body is also provided with a manhole and a sewage outlet. The manhole is provided on the side wall of the tank body, and the sewage outlet is provided at the lower part of the side wall of the tank body.

7. The unpacking slurry mixing and filtering device according to claim 1, characterized in that: Baffles are respectively arranged inside a group of opposite side walls of the box body; the secondary filter device is a secondary filter box with multiple precision filter holes, and hanging plates are respectively arranged on the outer edges of the upper ends of a group of opposite side walls of the secondary filter box, and the secondary filter box is hung on the baffles in the box body through the hanging plates; the primary filter device is a primary filter box with multiple primary filter holes, and a plurality of legs are arranged at the bottom of the primary filter box, and the primary filter box is arranged in the secondary filter box.

8. The unpacking slurry mixing and filtering device according to claim 7, characterized in that: The distance between the periphery and bottom of the secondary filter box and the inner wall of the box is 150-200 mm; the distance between the periphery and bottom of the primary filter box and the inner wall of the secondary filter box is 100-150 mm.

9. The unpacking slurry mixing and filtering device according to claim 7, characterized in that: The aperture of the precision filtration hole is 35-45 mm; the aperture of the primary filtration hole is 55-65 mm.

10. The unpacking slurry mixing and filtering device according to claim 7, characterized in that: The secondary filter box is also provided with at least one set of second lifting lugs; the primary filter box is also provided with at least one set of first lifting lugs.

11. The unpacking slurry mixing and filtering device according to claim 1, characterized in that: The first pipeline system includes a first short circuit connected to the tank slurry delivery port, a box feed pipe connected to the short circuit, and a second short circuit connected to the box feed pipe, and the discharge end of the second short circuit is arranged above the primary filtering device; the first short circuit is provided with a pressure transmitter, and the box feed pipe is provided with a slurry delivery valve.

12. The unpacking, slurry mixing and filtering device according to any one of claims 1 to 11, characterized in that: The box body is provided with a box body discharge port, the discharge pump is connected to the box body discharge port through a box body discharge pipe, and the box body discharge pipe is provided with a discharge valve; the discharge pipe and the recoil pipe are respectively provided with a discharge valve and a recoil valve.

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