Equipment and method for identifying and sampling multi-source sludge

Abstract

The invention discloses equipment and a method for identifying and sampling multi-source sludge. The equipment comprises an equipment base as well as a feeding assembly, a filter pressing assembly and a sampling assembly which are arranged on the equipment base, the feeding assembly is used for carrying out classified collection on multi-source sludge, the filter pressing assembly is used for carrying out filter pressing treatment on different types of sludge, and the sampling assembly is used for collecting different types of filter-pressed sludge; the equipment is reasonable in structural design, sludge generated in different process links in the sewage treatment process is subjected to step-by-step filter pressing and sampling treatment, and meanwhile, the used conveying mesh belt and extrusion belt are cleaned, so that mutual interference among different types of sludge is effectively avoided, the accuracy and reliability during sludge component identification are improved, and the equipment is suitable for popularization and application. The method is suitable for popularization.

Description

Technical Field

[0001] The invention relates to the technical field of multi-source sludge treatment, and in particular to a device and method for multi-source sludge identification and sampling. Background Art

[0002] Outside the list of hazardous wastes, sludge suspected of containing toxic and hazardous substances needs to be identified as hazardous waste. According to the "mixed determination rules" and "determination rules after utilization and disposal" stipulated in the "General Rules for Hazardous Waste Identification Standards" (GB 5085.7), the objects of hazardous waste identification should be accurately identified. Wastewater treatment sludge is a solid waste generated in the process of environmental governance and pollution control. The "Technical Specifications for Hazardous Waste Identification" (HJ 298-2019) stipulates that this type of solid waste "should be sampled during the production period when the pollutant source of the pollution control facility, the operating load of the facility and the effect are stable; solid wastes generated in different process links should be sampled separately according to the environmental governance and pollution control process flow."

[0003] Wastewater treatment sludge can be roughly divided into domestic sewage sludge and industrial wastewater sludge according to its source. Sludge can also be divided into different types according to the sewage treatment method, the degree of separation of sludge from sewage or the stage of sludge production. The sludge produced in different process links contains different harmful substances such as organic matter and heavy metals. Therefore, in the process of identifying the hazardous characteristics of sludge, it is necessary to sample the filter press sludge produced in different process links separately; however, existing sewage treatment companies often have only one thickening tank or one set of plate and frame filter presses, which cannot realize the classified collection, filtration and sampling of sludge.

[0004] In the prior art, it is necessary to change the sludge pipeline entering the plate and frame filter press in order to classify and sample the sludge in different process links; however, changing the sludge pipeline and then performing sludge filtration is cumbersome, which not only affects the normal operation of the overall process, but also causes sludge from different pipelines to contaminate each other, affecting the accuracy of identification of hazardous characteristics; at the same time, the amount of sludge produced in some parts is small, and separate sampling requires a long time to meet the start-up conditions of the plate and frame filter press, which will affect the normal sludge production and sampling in other process links. Summary of the invention

[0005] In view of the above-mentioned technical problems, the present invention provides a device and method for multi-source sludge identification and sampling.

[0006] The technical solution of the present invention is: a device for multi-source sludge identification sampling, comprising a device base and a feed assembly, a filter press assembly, and a sampling assembly arranged on the device base; support plates are arranged on both sides of the upper end surface of the device base;

[0007] The feeding assembly includes a feeding bin arranged on the equipment base and a discharge pipe arranged at the lower end of the right side wall of the feeding bin; a plurality of sludge temporary storage chambers are evenly distributed inside the feeding bin, and a connecting pipe is provided at the top of the feeding bin and connected to each sludge temporary storage chamber; the number of discharge pipes corresponds to the number of sludge temporary storage chambers, each discharge pipe is connected to each sludge temporary storage chamber in a one-to-one correspondence, and each discharge pipe is movably connected with a closing plate;

[0008] The filter press assembly includes a filter press box movably connected to the equipment base and located between two support plates, a conveying member arranged inside the filter press box and used to convey sludge and an extrusion member for filter pressing sludge, a first motor arranged on the filter press box and providing power for the conveying member and a second motor providing power for the extrusion member, and a conversion motor arranged on one of the support plates and providing power for the filter press box; a first material guide trough capable of communicating with any one of the discharge pipes is arranged on the left side of the filter press box, a second material guide trough is arranged on the right side, a drain pipe is arranged at the lower end of the outer wall, and a threaded seat is arranged at the bottom end; the output end of the conversion motor is connected to a conversion screw rotatably connected to the support plate and threadedly connected to the threaded seat;

[0009] The sampling assembly includes a storage box arranged on the equipment base and located on the right side of the filter press box, a rotating cylinder rotatably connected to the storage box, and a stirring motor arranged on the equipment base and providing power for the rotating cylinder; a mounting frame located outside the storage box is arranged on the equipment base; a plurality of sludge sample chambers are evenly distributed inside the storage box; a discharge hopper which is respectively connected to each sludge sample chamber is arranged at the lower end of the outer wall of the storage box, and a movable baffle is movably hinged on each discharge hopper; a plurality of rotating cylinders are arranged, and each rotating cylinder is rotatably connected to each sludge sample chamber in a one-to-one manner, and a limiting frame which is sleeved on the outer side of the rotating cylinder at a corresponding position is movably connected to the top of each sludge sample chamber; a first bevel gear is arranged on the top of each rotating cylinder, and a stirring rod is arranged on the outer wall of each rotating cylinder; a gear box is arranged on the top of the mounting frame, and the stirring motor is arranged on the outer wall of the gear box, and the output end of the stirring motor is connected to a linkage shaft which is rotatably connected to the gear box, and a second bevel gear which is respectively meshed and connected with each first bevel gear in a one-to-one manner is sleeved on the linkage shaft.

[0010] Furthermore, the conveying member includes two conveying rollers rotatably connected to the filter press box and a conveying mesh belt sleeved outside the two conveying rollers; the first motor provides power to one of the conveying rollers; the extrusion member includes two extrusion rollers rotatably connected to the filter press box and respectively located above the two conveying rollers, and an extrusion belt sleeved outside the two extrusion rollers; the second motor provides power to one of the extrusion rollers; the conveying mesh belt and the extrusion belt are both obliquely arranged inside the filter press box, and the spacing between the conveying mesh belt and the extrusion belt decreases from left to right; the left end of the conveying mesh belt abuts against the first material guide trough, and the right end of the conveying mesh belt abuts against the second material guide trough;

[0011] Description: When in use, the first motor is used to drive one of the conveying rollers to rotate, and the second motor is used to drive one of the squeezing rollers to rotate. At this time, the conveying mesh belt moves around the two conveying rollers, and the squeezing belt moves around the two squeezing rollers; the sludge moves to the right under the action of the conveying mesh belt, and is filtered under the action of the squeezing belt.

[0012] Furthermore, both ends of the other squeezing roller are slidably engaged with the side walls of the filter press box; damping boxes located at both ends of the squeezing roller are provided on both sides of the filter press box; both ends of the squeezing roller are sleeved with sliding seats slidably engaged with the damping boxes at corresponding positions; a guide rod slidably engaged with the sliding seat is provided inside the damping box, and a damping spring abutting against the sliding seat is sleeved on the guide rod;

[0013] Note: During the movement of the squeezing belt, the corresponding squeezing roller is always away from another squeezing roller under the action of the sliding seat and the damping spring, so that the squeezing belt always remains in a tensioned state, which is beneficial to improving the sludge filtration effect.

[0014] Furthermore, two adjusting rollers located inside the extrusion belt are rotatably engaged inside the filter press box; an adjusting seat rotatably engaged with the two adjusting rollers is disposed outside the filter press box; and a first electric rod connected to the adjusting seat is disposed on the outer wall of the filter press box;

[0015] Description: Use the first electric rod to push the adjustment seat to move outside the filter press box. At this time, the two adjustment rollers are close to or away from the conveying roller to adjust the distance between the extrusion belt and the conveyor mesh belt, so as to adjust the water content of the sludge after filtration according to production needs.

[0016] Furthermore, each discharge pipe is provided with a second electric rod connected to the closing plate at the corresponding position;

[0017] Note: Using the second electric rod to drive the closing plate to slide on the corresponding discharge pipe is beneficial to improving the operating convenience when the closing plate is opened.

[0018] Furthermore, a vibration plate is slidably connected to the base of the equipment through a sliding rod; two support plates are arranged on the vibration plate; a buffer spring abutting against the vibration plate is sleeved on the sliding rod; an ultrasonic generator and an ultrasonic vibration rod electrically connected to the ultrasonic generator and fixedly connected to the vibration plate are arranged on the base of the equipment; a cleaning pipe is arranged on the top of the filter press box, and a water inlet pipe connected to the cleaning pipe is arranged on the top of the filter press box;

[0019] Description: After a certain type of sludge is filtered, the water inlet pipe is used to pass external clean water into the cleaning pipe to flush the conveyor mesh belt and the extrusion belt, so as to avoid mutual interference between different types of sludge and affect the accuracy of sludge identification; the ultrasonic generator is used to transmit the ultrasonic signal to the ultrasonic vibration rod, and the ultrasonic vibration rod is used to convert the electrical signal into mechanical vibration and act on the vibration plate, so that the sludge adhering to the conveyor mesh belt and the extrusion belt can fall off quickly.

[0020] Furthermore, a roller is rotatably engaged at the bottom of the filter press box; a guide slot is provided on the vibration plate and is slidably engaged with the roller;

[0021] Note: During the movement of the filter press box, the clamping effect of the rollers and the guide slots is used to improve the stability of the filter press box during movement, thereby effectively improving the reliability of the equipment.

[0022] Furthermore, the interior of the rotating cylinder is hollow, and a lifting screw is rotatably engaged inside the rotating cylinder, the top of the lifting screw passes through the rotating cylinder, and the first bevel gear is arranged at the top of the lifting screw; a ratchet is sleeved on the upper end of the outer wall of the lifting screw; a pawl that can be movably engaged with the ratchet is movably hinged on the inner wall of the rotating cylinder; a sample collection tube is arranged on the upper end of the outer wall of the rotating cylinder, and a through groove is penetrated through the lower end of the outer wall of the rotating cylinder; a pull-out plate that can close the through groove is slidably engaged inside the rotating cylinder; an operating rod that passes through the rotating cylinder is arranged on the pull-out plate;

[0023] Description: When the stirring motor rotates forward, the pawl and the ratchet wheel are used to make the lifting screw and the rotating drum rotate synchronously. When the stirring motor rotates reversely, the lifting screw rotates and the rotating drum stops rotating. At this time, pull the operating lever upward to make the pull-out plate disengage from the through slot. The sludge after filtration enters the rotating drum through the through slot and is discharged through the sample collection tube under the action of the lifting screw, which is conducive to improving the convenience of sampling sludge from filtration and improving the sludge sampling efficiency.

[0024] The present invention also provides a method for multi-source sludge identification and sampling, based on the above-mentioned device for multi-source sludge identification and sampling, comprising the following steps:

[0025] S1. The sludge generated in each process of sewage treatment is introduced into different sludge temporary storage chambers;

[0026] S2. Use the conversion motor to drive the conversion screw to rotate, and use the connection between the threaded seat and the conversion screw to move the filter press box on the equipment base, so that the first material guide trough is directly opposite to one of the discharge pipes, and the second material guide trough is connected to the corresponding sludge sample chamber; open the closing plate on the discharge pipe; at this time, the sludge enters the conveying member inside the filter press box;

[0027] S3, using the first motor to drive the conveying member to operate, and using the second motor to drive the extrusion member to operate; the sludge is subjected to filter pressing treatment under the joint action of the conveying member and the extrusion member; the sewage generated during the sludge filter pressing process is discharged through a drain pipe;

[0028] S4, the sludge after filter pressing enters the corresponding sludge sample chamber through the second guide trough, the linkage shaft is driven to rotate by the stirring motor, the meshing action of the second bevel gear and the first bevel gear is used to make each rotating cylinder rotate inside the corresponding sludge sample chamber, the sludge after filter pressing is stirred by the stirring rod, and finally the uniformly stirred filter pressing sludge is sampled; after sampling, the filter pressing sludge is discharged through the discharge hopper and transported out;

[0029] S5. Repeat steps S2 to S4 to achieve classified sampling of multi-source sludge.

[0030] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0031] First, the equipment structure of the present invention is reasonably designed. By performing step-by-step filtration and sampling treatment on the sludge generated in different process links during the sewage treatment process, and cleaning the conveyor belt and the extrusion belt after use, mutual interference between different sludges is effectively avoided, thereby improving the accuracy and reliability of sludge component identification;

[0032] Second, the present invention can realize the classified filter pressing treatment of different sludges by using a set of filter pressing components, thereby realizing the miniaturization of the equipment, reducing the floor space of the equipment, and also reducing the cost investment of the sewage treatment enterprise;

[0033] Third, the device of the present invention can not only refine the sludge fragments after filtration by stirring the sludge after filtration, but also improve the uniformity of the sludge, reduce the difference between sludge samples at different heights inside the sludge sample chamber, and improve the sampling reliability of the sludge samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a longitudinal sectional view of the apparatus of the present invention;

[0035] Figure 2 is a top view of the apparatus of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the feed bin of the present invention;

[0037] Figure 4 It is a schematic diagram of the connection between the first motor, the second motor and the filter press box of the present invention;

[0038] Figure 5 The present invention Figure 4A local enlarged schematic diagram of the middle A;

[0039] Figure 6 It is a schematic diagram of the connection between the storage box and the equipment base of the present invention;

[0040] Figure 7 It is a distribution diagram of the discharge hopper of the present invention on the storage box;

[0041] Figure 8 It is a schematic diagram of the connection between the lifting screw and the rotating cylinder of the present invention;

[0042] Fig. 9 is a schematic diagram of the connection between the ratchet and the pawl of the present invention;

[0043] Among them, 1-equipment base, 10-support plate, 11-sliding rod, 110-buffer spring, 12-vibrating plate, 120-guide slot, 2-feeding assembly, 20-feeding bin, 21-discharging pipe, 210-closing plate, 22-sludge temporary storage chamber, 220-connecting pipe, 23-second electric rod, 3-filter press assembly, 30-filter press box, 300-first guide trough, 301-second guide trough, 302-drain pipe, 303-threaded seat, 31-conveying member, 310-conveying roller, 311-conveying mesh belt, 32-extrusion member, 320-extrusion roller, 321-extrusion belt, 322-damping box, 323-sliding seat, 324-guide rod, 3240-damping spring, 325-adjusting roller, 326- Adjustment seat, 327-first electric rod, 33-first motor, 34-second motor, 35-conversion motor, 350-conversion screw, 36-roller, 4-sampling assembly, 40-storage box, 400-sludge sample chamber, 401-limiting frame, 41-rotating cylinder, 410-first bevel gear, 411-sample collection tube, 412-through groove, 42-stirring motor, 420-linked rotating shaft, 421-second bevel gear, 43-mounting frame, 430-gear box, 44-discharging hopper, 440-movable baffle, 45-stirring rod, 46-lifting screw, 460-ratchet, 461-pawl, 47-pull-out plate, 470-operating rod, 5-ultrasonic generator, 50-ultrasonic vibration rod, 6-cleaning pipe, 60-water inlet pipe. DETAILED DESCRIPTION

[0044] Example 1

[0045] like Figure 1 , 2 The device for multi-source sludge identification and sampling shown in the figure comprises a device base 1 and a feed assembly 2, a filter press assembly 3, and a sampling assembly 4 arranged on the device base 1; support plates 10 are arranged on both sides of the upper end surface of the device base 1;

[0046] like Figure 1 ,2 As shown in Figures 3 and 4, the feed assembly 2 includes a feed bin 20 disposed on the equipment base 1 and a discharge pipe 21 disposed at the lower end of the right side wall of the feed bin 20; six sludge temporary storage chambers 22 are evenly distributed inside the feed bin 20, and a connecting pipe 220 is at the top of the feed bin 20 and connected to each sludge temporary storage chamber 22; the number of the discharge pipes 21 corresponds to the number of the sludge temporary storage chambers 22, and each discharge pipe 21 is connected to each sludge temporary storage chamber 22 in a one-to-one correspondence, and each discharge pipe 21 is movably connected with a closing plate 210;

[0047] like Figure 1 , 2 As shown in Figure 4, the filter press assembly 3 includes a filter press box 30 movably connected to the equipment base 1 and located between two support plates 10, a conveying member 31 arranged inside the filter press box 30 and used to convey sludge and an extrusion member 32 for filter pressing sludge, a first motor 33 arranged on the filter press box 30 and providing power for the conveying member 31 and a second motor 34 providing power for the extrusion member 32, and a conversion motor 35 arranged on one of the support plates 10 and providing power for the filter press box 30; the filter press box 30 is provided with a first guide trough 300 capable of communicating with any one of the discharge pipes 21 on the left side, a second guide trough 301 on the right side, a drain pipe 302 at the lower end of the outer wall, and a threaded seat 303 at the bottom end; the output end of the conversion motor 35 is connected to a conversion screw 350 rotatably connected to the support plate 10 and threadedly connected to the threaded seat 303; wherein the conveying member 31 and the extrusion member 32 are both based on the existing technology;

[0048] like Figure 1 , 2As shown in Figures 6 and 7, the sampling assembly 4 includes a storage box 40 arranged on the equipment base 1 and located on the right side of the filter press box 30, a rotating drum 41 rotatably connected to the inside of the storage box 40, and a stirring motor 42 arranged on the equipment base 1 and providing power to the rotating drum 41; a mounting frame 43 located outside the storage box 40 is arranged on the equipment base 1; 6 sludge sample chambers 400 are evenly distributed inside the storage box 40; a discharge hopper 44 which is respectively connected to each sludge sample chamber 400 is arranged at the lower end of the outer side wall of the storage box 40, and each discharge hopper 44 is movably hinged with a movable baffle 440; 6 rotating drums 41 are arranged, and each rotating drum 41 corresponds to the rotating card one by one It is connected to the inside of each sludge sample chamber 400, and the top of each sludge sample chamber 400 is movably connected with a limit frame 401 that is sleeved on the outside of the rotating cylinder 41 at the corresponding position; the top of each rotating cylinder 41 is provided with a first bevel gear 410, and the outer wall of each rotating cylinder 41 is provided with a stirring rod 45; the top of the mounting frame 43 is provided with a gear box 430, and the stirring motor 42 is provided on the outer wall of the gear box 430. The output end of the stirring motor 42 is connected with a linkage shaft 420 that is rotatably connected to the inside of the gear box 430, and the linkage shaft 420 is sleeved with second bevel gears 421 that are respectively meshed and connected with each first bevel gear 410 one by one.

[0049] Example 2

[0050] This embodiment describes a method for multi-source sludge identification and sampling, and a device for multi-source sludge identification and sampling based on Embodiment 1, comprising the following steps:

[0051] S1. The sludge generated in each process of sewage treatment is introduced into different sludge temporary storage chambers 22 through a conduit;

[0052] S2, using the conversion motor 35 to drive the conversion screw 350 to rotate, using the connection between the threaded seat 303 and the conversion screw 350 to move the filter press box 30 on the equipment base 1, and make the first material guide trough 300 face one of the discharge pipes 21, and the second material guide trough 301 is connected to the corresponding sludge sample chamber 400; open the closing plate 210 on the discharge pipe 21; at this time, the sludge enters the conveying member 31 inside the filter press box 30;

[0053] S3, using the first motor 33 to drive the conveying member 31 to operate, and using the second motor 34 to drive the extrusion member 32 to operate; the sludge is subjected to filter pressing treatment under the joint action of the conveying member 31 and the extrusion member 32; the sewage generated during the sludge filter pressing process is discharged through the drain pipe 302;

[0054] S4, the sludge after filter pressing enters the corresponding sludge sample chamber 400 through the second guide trough 301, the stirring motor 42 is used to drive the linkage shaft 420 to rotate, the meshing action of the second bevel gear 421 and the first bevel gear 410 is used to make each rotating cylinder 41 rotate inside the corresponding sludge sample chamber 400, the sludge after filter pressing is stirred by the stirring rod 45, and finally the stirred filter pressing sludge is sampled; after sampling, the filter pressing sludge is discharged through the discharge hopper 44 and transported out;

[0055] S5. Repeat steps S2 to S4 to achieve classified sampling of multi-source sludge.

[0056] Example 3

[0057] The difference between this embodiment and the first embodiment is that nine sludge temporary storage chambers 22 , nine sludge sample chambers 400 and nine rotating cylinders 41 are provided.

[0058] Example 4

[0059] The difference between this embodiment and embodiment 1 is that:

[0060] like Figure 1 , 2 As shown in , 4 and 5, the conveying member 31 includes two conveying rollers 310 rotatably connected to the filter press box 30 and a conveying mesh belt 311 sleeved on the outside of the two conveying rollers 310; the first motor 33 provides power for one of the conveying rollers 310; the extrusion member 32 includes two extrusion rollers 320 rotatably connected to the filter press box 30 and respectively located above the two conveying rollers 310 and an extrusion belt 321 sleeved on the outside of the two extrusion rollers 320; the second motor 34 provides power for one of the extrusion rollers 320; the conveying mesh belt 311 and the extrusion belt 321 are both obliquely arranged in the filter press box 30, and the spacing between the conveying mesh belt 311 and the extrusion belt 321 decreases from left to right; the left end of the conveying mesh belt 311 abuts against the first material guide trough 300, and the right end of the conveying mesh belt 311 abuts against the first material guide trough 300, and the right end of the conveying mesh belt 311 abuts against the first material guide trough 300. abutting against the second material guide trough 301; both ends of the other extrusion roller 320 are slidably engaged with the side walls of the filter press box 30; damping boxes 322 located at both ends of the extrusion roller 320 are provided on both sides of the filter press box 30; both ends of the extrusion roller 320 are sleeved with sliding seats 323 slidably engaged with the damping boxes 322 at corresponding positions; a guide rod 324 slidably engaged with the sliding seat 323 is provided inside the damping box 322, and a damping spring 3240 abutting against the sliding seat 323 is sleeved on the guide rod 324; two adjusting rollers 325 located inside the extrusion belt 321 are rotatably engaged inside the filter press box 30; an adjusting seat 326 rotatably engaged with the two adjusting rollers 325 at the same time is provided outside the filter press box 30; a first electric rod 327 connected to the adjusting seat 326 is provided on the outer side wall of the filter press box 30.

[0061] Example 5

[0062] The difference between this embodiment and embodiment 4 is that:

[0063] like Figure 3 As shown, each discharge tube 21 is provided with a second electric rod 23 connected to the closing plate 210 at the corresponding position; the second electric rod 23 is used to drive the closing plate 210 to slide on the corresponding discharge tube 21, which is beneficial to improve the operational convenience when the closing plate 210 is opened.

[0064] Example 6

[0065] The difference between this embodiment and embodiment 5 is that:

[0066] like Figure 1 , 2 As shown, a vibration plate 12 is slidably connected to the equipment base 1 through a sliding rod 11; two support plates 10 are arranged on the vibration plate 12; a buffer spring 110 abutting against the vibration plate 12 is sleeved on the sliding rod 11; an ultrasonic generator 5 and an ultrasonic vibration rod 50 electrically connected to the ultrasonic generator 5 and fixedly connected to the vibration plate 12 are arranged on the equipment base 1; a cleaning pipe 6 is arranged at the top of the filter press box 30, and a water inlet pipe 60 connected to the cleaning pipe 6 is arranged at the top of the filter press box 30; a roller 36 is rotatably connected to the bottom end of the filter press box 30; and a guide slot 120 slidably connected to the roller 36 is arranged on the vibration plate 12.

[0067] Example 7

[0068] The difference between this embodiment and embodiment 6 is that:

[0069] like Figure 1 , 7 As shown in Figures 8 and 9, the interior of the rotating cylinder 41 is hollow, and a lifting screw 46 is rotatably engaged inside the rotating cylinder 41, the top of the lifting screw 46 passes through the rotating cylinder 41, and a first bevel gear 410 is arranged on the top of the lifting screw 46; a ratchet 460 is sleeved on the upper end of the outer wall of the lifting screw 46; a pawl 461 that can be movably engaged with the ratchet 460 is movably hinged on the inner wall of the rotating cylinder 41; a sample collecting tube 411 is arranged on the upper end of the outer wall of the rotating cylinder 41, and a through groove 412 is penetrated at the lower end of the outer wall of the rotating cylinder 41; a pull-out plate 47 that can close the through groove 412 is slidably engaged with the rotating cylinder 41; an operating rod 470 that passes through the rotating cylinder 41 is arranged on the pull-out plate 47.

[0070] Example 8

[0071] This embodiment describes a method for multi-source sludge identification and sampling, and a device for multi-source sludge identification and sampling based on Embodiment 7, comprising the following steps:

[0072] S1. The sludge generated in each process of the sewage treatment process is introduced into different sludge temporary storage chambers 22 through the connecting pipes 220 at the top of the feed bin 20;

[0073] S2. The conversion motor 35 is used to drive the conversion screw 350 to rotate, and the connection between the threaded seat 303 and the conversion screw 350 is used to move the filter press box 30 on the equipment base 1, so that the first guide trough 300 is directly opposite to one of the discharge pipes 21, and the second guide trough 301 is connected to the corresponding sludge sample chamber 400; the closing plate 210 on the discharge pipe 21 is opened; at this time, the sludge falls to the left end of the conveyor belt 311 through the first guide trough 300;

[0074] S3, using the first motor 33 to drive one of the conveying rollers 310 to rotate, and using the second motor 34 to drive one of the squeezing rollers 320 to rotate, at this time, the conveying mesh belt 311 moves around the two conveying rollers 310, and the squeezing belt 321 moves around the two squeezing rollers 320; the sludge moves to the right under the action of the conveying mesh belt 311, and is subjected to filter pressing treatment under the action of the squeezing belt 321. During the movement of the squeezing belt 321, one of the squeezing rollers 320 is always away from the other squeezing roller 320 under the action of the sliding seat 323 and the damping spring 3240, so that the squeezing belt 321 is always kept in a tensioned state; at the same time, according to production needs, the first electric rod 327 is used to push the adjustment seat 326 to move outside the filter press box 30, at this time, the two adjustment rollers 325 are close to or away from the conveying roller 310, and the distance between the squeezing belt 321 and the conveying mesh belt 311 is adjusted;

[0075] S4. The sludge after pressure filtration enters the corresponding sludge sample chamber 400 through the second guide trough 301, and the stirring motor 42 is used to drive the linkage shaft 420 to rotate. The meshing action of the second bevel gear 421 and the first bevel gear 410 is used to make each rotating cylinder 41 rotate inside the corresponding sludge sample chamber 400, and the stirring rod 45 is used to stir the sludge after pressure filtration. When the stirring motor 42 rotates forward, the lifting screw 46 and the rotating cylinder 41 are rotated synchronously by the clamping action of the pawl 461 and the ratchet 460. When the stirring motor 42 is reversed, the lifting screw 46 rotates and the rotating cylinder 41 stops rotating. At this time, the operating rod 470 is pulled upward to make the pull plate 47 disengage from the through slot 412. The sludge after pressure filtration enters the rotating cylinder 41 through the through slot 412 and is discharged through the sample collection tube 411 under the action of the lifting screw 46. After the sampling is completed, the pressure filtration sludge is discharged through the discharge hopper 44 and transported out.

[0076] S5, using the water inlet pipe 60 to pass external clean water into the cleaning pipe 6 to rinse the conveyor mesh belt 311 and the extrusion belt 321. At the same time, using the ultrasonic generator 5 to transmit the ultrasonic signal to the ultrasonic vibration rod 50, the ultrasonic vibration rod 50 converts the electrical signal into mechanical vibration and acts on the vibration plate 12, so that the sludge adhering to the conveyor mesh belt 311 and the extrusion belt 321 falls off;

[0077] S6. Repeat steps S2 to S6 to achieve classified sampling of multi-source sludge.

[0078] It should be noted that the second electric rod 23, the first electric rod 327, the first motor 33, the second motor 34, the conversion motor 35, the stirring motor 42, the ultrasonic generator 5 and the ultrasonic vibration rod 50 used in the present invention all adopt existing technologies and are not specifically limited here. Those skilled in the art can select corresponding products according to actual needs.

Claims

1. A device for multi-source sludge identification and sampling, characterized in that: It comprises an equipment base (1) and a feed assembly (2), a filter press assembly (3), and a sampling assembly (4) arranged on the equipment base (1); support plates (10) are arranged on both sides of the upper end surface of the equipment base (1); The feed assembly (2) comprises a feed bin (20) arranged on the equipment base (1) and a discharge pipe (21) arranged at the lower end of the right side wall of the feed bin (20); a plurality of sludge temporary storage chambers (22) are evenly distributed inside the feed bin (20); the number of the discharge pipes (21) corresponds to the number of the sludge temporary storage chambers (22), each discharge pipe (21) is connected to each sludge temporary storage chamber (22) in a one-to-one correspondence, and each discharge pipe (21) is movably connected with a closing plate (210); The filter press assembly (3) comprises a filter press box (30) movably connected to the equipment base (1), a conveying member (31) arranged inside the filter press box (30) and used to convey sludge, and an extrusion member (32) used to filter the sludge, a first motor (33) arranged on the filter press box (30) and providing power to the conveying member (31) and a second motor (34) providing power to the extrusion member (32), and a conversion motor (35) arranged on one of the support plates (10) and providing power to the filter press box (30); The sampling assembly (4) comprises a storage box (40) arranged on the equipment base (1), a rotating cylinder (41) rotatably connected to the inside of the storage box (40), and a stirring motor (42) arranged on the equipment base (1) and providing power to the rotating cylinder (41); a mounting frame (43) located outside the storage box (40) is arranged on the equipment base (1); a plurality of sludge sample chambers (400) are evenly distributed inside the storage box (40); a plurality of rotating cylinders (41) are arranged, and each of the rotating cylinders (41) is rotatably connected to the inside of each sludge sample chamber (400) in a one-to-one manner; a stirring rod (45) is arranged on the outer wall of each rotating cylinder (41); a gear box (430) is arranged at the top of the mounting frame (43), and the stirring motor (42) is arranged on the outer wall of the gear box (430).

2. The device for multi-source sludge identification and sampling according to claim 1 is characterized in that: The conveying member (31) comprises two conveying rollers (310) rotatably engaged with the inside of the filter press box (30) and a conveying mesh belt (311) sleeved on the outside of the two conveying rollers (310); the first motor (33) provides power for one of the conveying rollers (310); the extrusion member (32) comprises two extrusion rollers (320) rotatably engaged with the inside of the filter press box (30) and respectively located above the two conveying rollers (310) and a conveying mesh belt (311) sleeved on the outside of the two extrusion rollers (310); The second motor (34) provides power for one of the squeezing rollers (320); the conveying mesh belt (311) and the squeezing belt (321) are both obliquely arranged inside the filter press box (30), and the spacing between the conveying mesh belt (311) and the squeezing belt (321) decreases from left to right; the left end of the conveying mesh belt (311) abuts against the first material guide trough (300), and the right end of the conveying mesh belt (311) abuts against the second material guide trough (301).

3. The device for multi-source sludge identification and sampling according to claim 2 is characterized in that: Both ends of the other extrusion roller (320) are slidably engaged with the side walls of the filter press box (30); damping boxes (322) located at both ends of the extrusion roller (320) are provided on both sides of the filter press box (30); both ends of the extrusion roller (320) are sleeved with sliding seats (323) slidably engaged with the damping boxes (322) at corresponding positions; a guide rod (324) slidably engaged with the sliding seat (323) is provided inside the damping box (322), and a damping spring (3240) abutting against the sliding seat (323) is sleeved on the guide rod (324).

4. The device for multi-source sludge identification and sampling according to claim 3 is characterized in that: Two adjusting rollers (325) located inside the squeezing belt (321) are rotatably engaged inside the filter press box (30); an adjusting seat (326) is arranged outside the filter press box (30) and is rotatably engaged with the two adjusting rollers (325); and a first electric rod (327) connected to the adjusting seat (326) is arranged on the outer wall of the filter press box (30).

5. The device for multi-source sludge identification and sampling according to claim 1 is characterized in that: A vibration plate (12) is slidably connected to the equipment base (1) via a sliding rod (11); the two support plates (10) are both arranged on the vibration plate (12); a buffer spring (110) is sleeved on the sliding rod (11) and is in contact with the vibration plate (12); an ultrasonic generator (5) and an ultrasonic vibration rod (50) electrically connected to the ultrasonic generator (5) and fixedly connected to the vibration plate (12) are arranged on the equipment base (1); a cleaning pipe (6) is arranged at the top of the filter press box (30), and a water inlet pipe (60) connected to the cleaning pipe (6) is arranged at the top of the filter press box (30).

6. The device for multi-source sludge identification and sampling according to claim 1 is characterized in that: The interior of the rotating cylinder (41) is hollow, and a lifting screw (46) is rotatably engaged inside the rotating cylinder (41), the top end of the lifting screw (46) passes through the rotating cylinder (41), and the first bevel gear (410) is arranged at the top end of the lifting screw (46); a ratchet (460) is sleeved on the upper end of the outer wall of the lifting screw (46); a ratchet pawl (461) that can be movably engaged with the ratchet (460) is movably hinged on the inner wall of the rotating cylinder (41); a sample collection tube (411) is arranged on the upper end of the outer wall of the rotating cylinder (41), and a through groove (412) is penetrated through the lower end of the outer wall of the rotating cylinder (41); a pull-out plate (47) that can close the through groove (412) is slidably engaged inside the rotating cylinder (41); and an operating rod (470) that passes through the rotating cylinder (41) is arranged on the pull-out plate (47).

7. A method for multi-source sludge identification and sampling, based on the device for multi-source sludge identification and sampling according to claim 4, characterized in that: The following steps are involved: S1. The sludge generated in each process step of the sewage treatment process is introduced into each sludge temporary storage chamber (22) inside the feed bin (20) through a conduit; S2, using the conversion motor (35) to drive the filter press box (30) to move on the equipment base (1), so that the left end of the filter press box (30) is directly opposite to one of the discharge pipes (21), and then the closing plate (210) on the discharge pipe (21) is opened; at this time, the sludge enters the conveyor mesh belt (311) inside the filter press box (30); S3, using the first motor (33) to drive one of the conveying rollers (310) to rotate, and using the second motor (34) to drive one of the squeezing rollers (320) to rotate, at this time, the conveying mesh belt (311) moves around the two conveying rollers (310), and the squeezing belt (321) moves around the two squeezing rollers (320); the sludge moves to the right under the action of the conveying mesh belt (311), and is subjected to filter pressing treatment under the action of the squeezing belt (321). During the movement of the squeezing belt (321), one of the Under the action of the sliding seat (323) and the damping spring (3240), the squeezing roller (320) is always away from the other squeezing roller (320), so that the squeezing belt (321) is always kept in a tensioned state; at the same time, according to production needs, the first electric rod (327) is used to push the adjustment seat (326) to move outside the filter press box (30), and at this time, the two adjustment rollers (325) are close to or away from the conveying roller (310), so as to adjust the distance between the squeezing belt (321) and the conveying mesh belt (311); S4, the sludge after filter pressing enters the corresponding sludge sample chamber (400) through the right end of the filter press box (30), and the stirring motor (42) drives each rotating cylinder (41) to rotate in the corresponding sludge sample chamber (400), and the stirring rod (45) is used to stir the sludge after filter pressing, and finally the uniformly stirred filter pressing sludge is sampled; S5. Repeat steps S2 to S4 to achieve classified sampling of multi-source sludge.

8. The device for multi-source sludge identification and sampling according to claim 7 is characterized in that: A vibration plate (12) is slidably connected to the device base (1) via a sliding rod (11); the two support plates (10) are both arranged on the vibration plate (12); a buffer spring (110) is sleeved on the sliding rod (11) and abuts against the vibration plate (12); an ultrasonic generator (5) and an ultrasonic vibration rod (50) electrically connected to the ultrasonic generator (5) and fixedly connected to the vibration plate (12) are arranged on the device base (1).

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