CN112340957A

CN112340957A - Process for recycling waste in sewage treatment

Info

Publication number: CN112340957A
Application number: CN202011213920.3A
Authority: CN
Inventors: 潘申潮
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-02-09

Abstract

The invention discloses a process for recycling waste in sewage treatment, which comprises the following steps: waste water and waste are firstly separated through the screening tank, mud is enabled to be precipitated in the sedimentation tank of the screening tank, the mud is pumped by the mud pumping device and metal is removed, the speed reduction motor is started to perform rotary push type extrusion on the mud pumped into the mud tank, the mud is further dehydrated into powder, the powder is collected and reused, and meanwhile purified water in the sedimentation tank overflows into the MBR membrane treatment tank to be thoroughly purified and collected. The invention separates waste from wastewater of the primary treatment system by the screening tank, so that the wastewater is precipitated and purified in the screening tank and the sedimentation tank, then the precipitated slurry is pumped into the slurry tank by the slurry pumping device, and the metal removal and purification are carried out on the slurry, and the slurry entering the slurry tank is dehydrated and extruded into powder to be collected for later use.

Description

Process for recycling waste in sewage treatment

Technical Field

The invention relates to the technical field of water pollution treatment, in particular to a process for recycling waste in sewage treatment.

Background

The continuous expansion of urbanization, and the treatment of urban sewage is one of the main problems, and the conventional solutions thereof include sedimentation, microbial degradation, and MBR membrane biological reaction, wherein MBR membrane is a common product in the current treatment of urban sewage. The MBR membrane has good sewage treatment effect, good solid interception effect and long service life. Most of municipal sewage is domestic water, and mud of the municipal sewage is provided with elements of various microorganisms and other fertile soil, so that waste recycling can be realized if the municipal sewage is utilized to improve the land, however, most of sewage treatment plants pay more attention to purification and recycling of sewage, and solid matters such as mud separated or intercepted from the sewage are collected and buried together.

Disclosure of Invention

The invention aims to provide a process for recycling waste in sewage treatment, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides a process for recycling waste in sewage treatment, which comprises the following steps:

firstly, a waste and wastewater separation stage:

s1, firstly, sleeving a waste and wastewater conveying pipe into a pipe sleeve to be clamped by a pair of pipe clamping plates, and then starting a water pump at the other end of the conveying pipe to pump the waste and wastewater mixed liquor out of the conveying pipe to fall onto a screening plate at the top of a screening pool;

s2, allowing the waste and wastewater mixed liquor to flow along the top surface of the screening plate, allowing the wastewater to fall into the screening pool from the seepage holes to precipitate, and allowing the waste to slide to the outside of the screening pool to fall and be collected;

wherein the sedimentation water in the screening tank rises cumulatively and overflows into the sedimentation tank for secondary sedimentation;

II, a slurry conveying stage:

s3, starting a slurry pumping machine to pump and convey the slurry precipitated in the screening tank and the sedimentation tank;

s4, simultaneously pressing the button switch to switch on the electric coil, so that a magnetic field is generated inside the electromagnetic cylinder, the metal piece in the falling slurry is further adsorbed, and the slurry after removing the metal piece falls smoothly;

the sewage treatment recycling equipment comprises a screening tank for separating waste and wastewater, a screening plate for separating waste and wastewater is arranged above the inside of the screening tank, a sedimentation tank is arranged outside the front end of the screening tank, a slurry pumping device is arranged on one side of the bottom of the screening tank and one side of the bottom of the sedimentation tank, the slurry pumping device comprises a power-providing slurry pumping machine, an electromagnetic cylinder for magnetically sucking slurry metal is mounted at the top of the slurry pumping device, and a plurality of water seepage holes are symmetrically formed in the top surface of the screening plate along the length direction of the top surface;

thirdly, slurry extrusion dehydration stage:

s5, starting a speed reducing motor to drive the squeezing roller to rotate, extruding the slurry to move towards the opening of the slurry forming tank by the rotating spiral pressing sheet, and discharging the extruded water from the water filtering holes;

s6, extruding the dehydrated slurry out of the slurry forming tank by the rotary spiral tabletting, and then dropping and collecting the slurry from the material leaking port;

s7, starting the material receiving electric cylinder to drive the material receiving box to extend to the position right below the screening pipe, and after the slurry pumping device stops delivering slurry, powering off the electric coil to enable the electromagnetic cylinder to lose magnetism, and enabling the adsorbed metal piece to fall onto the material receiving box and roll into the collecting box to be collected in a centralized mode;

the sewage treatment recycling equipment comprises a mud pit arranged on one side of a screening pit, a mud forming tank for dehydrating mud is arranged in the bottom of the mud pit, a plurality of water filtering holes are formed in the bottom of the mud forming tank, a collecting box for collecting metal is arranged in the top of the mud pit, a rotatable squeezing roller is arranged inside the mud forming tank, the squeezing roller is of a conical structure and is coaxially connected with a speed reducing motor at the small diameter end of the squeezing roller, the outer side surface of the squeezing roller is provided with a spiral pressing sheet for conveying and squeezing the mud, the top of the closed end of the mud forming tank is communicated with a feed hopper, the collecting box is of a triangular frame structure, the bottom surface of the feed end of the collecting box is provided with a material receiving box, an electric material receiving cylinder for driving the collecting box to stretch is arranged behind the.

As a further improvement of this technical scheme, the top rear in screening pond has transversely been seted up out the thing mouth, and the one end downward sloping of screening board just extends to the outside in screening pond, and the bottom of screening board is equipped with the gliding section that passes out the thing mouth, and the top bottom surface of gliding section is vertical to be equipped with the limiting plate.

As a further improvement of this technical scheme, the top welding of screening board has the pipe box, and the outside symmetry of pipe box is equipped with the sleeve post that is step axle construction, and the jack has been seted up to the major diameter terminal surface of sleeve post, and the below of pipe box is provided with double-layered tube sheet, and the top corner of double-layered tube sheet is equipped with the lantern ring that cup joints with sleeve post path section, and the cover is equipped with the torsional spring between the lantern ring and the sleeve post path section, and torsional spring one end is equipped with straight extension section and pegs graft with the jack, and the other end of torsional spring is equipped with the section of bending and bends the section joint in the outside of the lantern ring, and the intercommunication has.

As a further improvement of the technical scheme, the adjacent positions of the bottoms of the screening tank and the sedimentation tank are respectively provided with a sinking type slurry settling seat, one side surface of the slurry settling seat is provided with a slurry outlet communicated with the inside of the screening tank, a slurry inlet pipe of the slurry pump is connected with a slurry pumping pipe in an inserting manner, a slurry outlet pipe of the slurry pump is connected with a slurry outlet pipe in an inserting manner, and two ends of the slurry outlet pipe are respectively fixedly connected with the slurry outlets of the screening tank and the sedimentation tank through bolts.

As the further improvement of this technical scheme, go out the top that the thick liquid pipe upwards extended to the mud pit, the top intercommunication that goes out the thick liquid pipe has the screening pipe, and the screening pipe is located the feeder hopper directly over, and an electromagnetism section of thick bamboo and the cooperation of screening pipe cup joint, the outside winding of an electromagnetism section of thick bamboo has the electric coil, and one side of electric coil is provided with battery and button switch, and electric coil, button switch and battery pass through the wire electric connection in proper order.

As a further improvement of the technical scheme, the bottom surface of the screening plate is provided with a dirt cleaning mechanism for dredging the water seepage hole, the dirt cleaning mechanism comprises a dirt cleaning electric cylinder for providing thrust and a plurality of linkage rods driven by the dirt cleaning electric cylinder, the linkage rods are symmetrically and slidably distributed on the bottom surface of the screening plate, and the dirt cleaning blocks inserted into the water seepage hole are arranged inside the linkage rods.

As a further improvement of this technical scheme, the gangbar is the middle part of cuboid structure and its long avris face and both ends department has all seted up the guide pillar hole, the bottom surface of screening board and be on a parallel with its width direction symmetry and be fixed with the guide pillar, the guide pillar is pegged graft and can slide with the guide pillar hole of the long avris both ends department of gangbar, the both ends cover of guide pillar is equipped with reset spring, the flexible direction of output shaft of electronic jar of decontaminating is unanimous with the length direction of screening board, the output shaft front end of electronic jar of decontaminating is fixed with the ejector pad that is the isosceles triangle structure, sliding connection has the ejector pad on the two inclined planes of ejector pad, the ejector pad is pegged graft and can slide with the guide pillar hole at the long.

As a further improvement of the technical scheme, the top surface of the linkage rod is provided with a sinking groove corresponding to the position of the water seepage hole, a pressure spring is embedded in the sinking groove and tightly bonded with the cleaning block, the cleaning block is provided with a round angle towards the edge at the middle part of the screening plate, and the edge at the middle part of the screening plate, which is back to the water seepage hole, is provided with a round angle.

As a further improvement of the technical scheme, the outer side of the spiral pressing sheet is equal to the inner diameter of the slurry forming tank, the major diameter of the press roll is smaller than the inner diameter of the slurry forming tank, and the major diameter end of the press roll is positioned at the opening end of the slurry forming tank.

As a further improvement of the technical scheme, a support is arranged at the large-diameter end of the squeezing roller, a bearing is embedded in the center of the support and is coaxially connected with the squeezing roller, a pressing plate is arranged at the front end of the squeezing roller, a baffle ring is arranged on the inner end face of the pressing plate, a fixing column inserted into the support is arranged on the outer end face of the pressing plate, a support table is arranged on the bottom face of the mud pit, and a material leakage port is formed in the top face of the support table and below an outlet of the mud forming tank.

Compared with the prior art, the invention has the beneficial effects that:

1. among this waste recycling's among sewage treatment process, carry out the separation of wastes material and waste water through the screening pond that sets up to the sewage of just advancing processing system, make waste water take place to deposit in screening pond and sedimentation tank and purify, the mud of will deposiing is sucked to the mud pond by the thick liquid device of taking out that sets up again, wherein take out the electromagnetic cylinder of thick liquid device and can remove metal to mud and purify, the mud that gets into in the mud pond is dehydrated and is extruded into likepowder, and is collected for use, this device makes follow-up sewage purification pressure reduce, make mud obtain recycling simultaneously, and has spreading value.

2. In the process for recycling waste in sewage treatment, the MBR membrane treatment tank arranged in front of the sedimentation tank is used for thoroughly purifying sewage subjected to twice sedimentation by the MBR membrane and discharging the sewage into the water outlet tank for collection and standby.

3. In the process for recycling waste in sewage treatment, the metal parts can be collected in a centralized manner through the collecting box arranged in the top of the mud tank, so that the metal parts can be treated in a centralized manner.

4. In this waste recovery's among sewage treatment technology, the mechanism of decontaminating through the bottom surface setting of screening board can in time clear up the jam in infiltration hole on the screening board, and its structure is ingenious and automatic, convenient to use.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a schematic view of the assembly structure of the screening cells of example 1;

FIG. 3 is a schematic structural view of a slurry pumping device according to embodiment 1;

FIG. 4 is a schematic view of the entire structure of the electromagnetic cylinder according to embodiment 1;

FIG. 5 is a schematic structural view of a sieving tank of example 1;

FIG. 6 is a schematic view of the bottom structure of the sieving plate of example 1;

FIG. 7 is a schematic structural view of the cleaning mechanism according to embodiment 1;

FIG. 8 is an exploded view of the linkage rod of embodiment 1;

FIG. 9 is a schematic diagram of the construction of the screen panel of example 1;

FIG. 10 is a partial exploded view of the pipe sleeve of example 1;

FIG. 11 is a schematic view showing an assembled structure of a mud pit according to example 1;

FIG. 12 is a schematic view showing the overall structure of a slurry forming tank according to embodiment 1;

FIG. 13 is a schematic view of the press roll structure of example 1;

FIG. 14 is a schematic view showing the external structure of a mud pit according to example 1;

FIG. 15 is a schematic view of the structure of a platen according to embodiment 1;

FIG. 16 is a schematic view of the structure of a collecting box according to embodiment 1;

FIG. 17 is a schematic view showing the structure of an MBR membrane treatment tank in example 1;

FIG. 18 is a schematic view of the water collecting means and MBR membrane module assembling structure in example 1;

FIG. 19 is a schematic view showing an assembly structure of the water collecting mechanism and the side frame in accordance with embodiment 1;

fig. 20 is an exploded view of the MBR membrane module of example 1.

The various reference numbers in the figures mean:

100. a screening tank; 101. a slurry settling seat; 102. an outlet; 103. a pulp outlet;

110. a screening plate; 111. a water seepage hole; 112. a lower sliding section; 113. pipe sleeve; 1130. sleeving a column; 1131. a jack; 114. a tube clamping plate; 1140. a collar; 115. a torsion spring; 116. a guide post; 1160. a return spring; 117. a limiting plate;

120. a sedimentation tank; 130. a slurry pumping device; 131. a pulp pumping machine; 132. a slurry pumping pipe; 133. a pulp outlet pipe; 134. screening the tubes; 135. an electromagnetic cylinder; 136. an electric coil; 137. a storage battery; 138. a push button switch;

140. a dirt removing mechanism; 141. cleaning the electric cylinder; 142. a push block; 143. pushing the column; 144. a linkage rod; 1440. sinking a groove; 1441. a guide post hole; 145. a pressure spring; 146. cleaning the dirt blocks;

150. a pod;

200. a mud pit; 201. a support stand; 202. a material leakage port;

210. a slurry forming tank; 2100. water filtering holes; 211. a press roll; 2110. performing spiral tabletting; 212. a reduction motor; 213. pressing a plate; 2130. a baffle ring; 2131. fixing a column; 214. a support; 215. a feed hopper;

220. a collection box; 221. a material receiving box; 222. a material receiving electric cylinder; 223. an overhanging edge;

300. an MBR membrane treatment tank;

310. a water collecting mechanism; 311. a water pumping pipe; 3110. a pipe connector; 312. a water pump; 313. a clear water pipe; 3130. a water inlet hole; 314. a side frame; 315. a support lever;

320. an MBR membrane module; 321. MBR membrane; 322. a water filter pipe; 323. a pipe groove;

400. a water outlet pool; 401. a sterilization chamber; 402. a clear water chamber; 403. a self-priming pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central axis", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

The invention provides a process for recycling waste in sewage treatment, which comprises the following steps:

firstly, a waste and wastewater separation stage:

s1, firstly, sleeving a waste and wastewater conveying pipe into the pipe sleeve 113, clamping the waste and wastewater conveying pipe by the pair of pipe clamping plates 114, and then starting a water pump at the other end of the conveying pipe to pump the waste and wastewater mixed liquor out of the conveying pipe to fall onto the screening plate 110 at the top of the screening pool 100;

s2, allowing the waste and wastewater mixed liquor to flow along the top surface of the screening plate 110, allowing the wastewater to fall into the screening tank 100 from the seepage holes 111 to precipitate, and allowing the waste to slide to the outside of the screening tank 100 to fall and be collected;

wherein the sedimentation water in the screening tank 100 is accumulated and rises and overflows into the sedimentation tank 120 for secondary sedimentation;

II, a slurry conveying stage:

s3, the re-slurry pump 131 is started to pump and convey the slurry settled in the sieving tank 100 and the settling tank 120;

s4, the button switch 138 is pressed simultaneously to switch on the electric coil 136, so that a magnetic field is generated inside the electromagnetic cylinder 135, the metal piece in the falling slurry is further adsorbed, and the slurry after the metal piece is removed falls smoothly;

the sewage treatment recycling equipment comprises a screening tank 100 for separating waste and wastewater, a screening plate 110 for separating waste and wastewater is arranged above the inside of the screening tank 100, a sedimentation tank 120 is arranged outside the front end of the screening tank 100, a slurry pumping device 130 is arranged on one side of the bottoms of the screening tank 100 and the sedimentation tank 120, the slurry pumping device 130 comprises a power-providing slurry pump 131, an electromagnetic cylinder 135 for magnetically sucking slurry metal is mounted at the top of the slurry pumping device 130, and a plurality of water seepage holes 111 are symmetrically formed in the top surface of the screening plate 110 along the length direction of the top surface;

thirdly, slurry extrusion dehydration stage:

s5, starting the speed reduction motor 212 to drive the press roller 211 to rotate, the rotating screw tablet 2110 presses the slurry to move towards the opening of the slurry forming tank 210, and the pressed water is discharged from the water filtering hole 2100;

s6, extruding the dewatered slurry out of the slurry forming tank 210 by the rotary screw press piece 2110, and further dropping and collecting the slurry from the material leakage port 202;

s7, starting the material receiving electric cylinder 222 to drive the material receiving box 221 to extend to the position right below the screening pipe 134, after the slurry pumping device 130 stops delivering slurry, powering off the electric coil 136 to enable the electric coil 135 to lose magnetism, and enabling the adsorbed metal pieces to fall onto the material receiving box 221 and roll into the collecting box 220 to be collected in a centralized mode;

the sewage treatment recycling equipment comprises a mud pit 200 arranged on one side of a screening pool 100, a mud forming tank 210 for dewatering mud is arranged in the bottom of the mud pit 200, a plurality of water filtering holes 2100 are formed in the bottom of the mud forming tank 210, a collecting box 220 for collecting metal is arranged in the top of the mud pit 200, a rotatable squeezing roller 211 is arranged inside the mud forming tank 210, the squeezing roller 211 is of a conical structure, the small-diameter end of the squeezing roller is coaxially connected with a speed reducing motor 212, a spiral pressing sheet 2110 for conveying and squeezing mud is arranged on the outer side surface of the squeezing roller 211, a feeding hopper 215 is communicated with the top of the closed end of the mud forming tank 210, the collecting box 220 is of a triangular frame structure, a material receiving box 221 is arranged on the bottom surface of the feeding end of the collecting box 220, an electric material receiving cylinder 222 for driving the collecting box 221 to stretch is arranged behind the material receiving box.

Referring to fig. 1 to 20, the present invention provides a water pollution treatment system based on waste treatment and reuse, which includes a screening tank 100 for separating waste and wastewater, a mud tank 200 disposed at one side of the screening tank 100, and an MBR membrane treatment tank 300 disposed in front of the screening tank 100, wherein the waste and wastewater are conveyed to the screening tank 100 through a pipe for separation, the waste slides out of the screening tank 100 to be collected, the wastewater is deposited at the bottom of the screening tank 100, the deposited mud is pumped into the mud tank for dewatering and compression collection, and can be used as agricultural fillers such as retting fertilizer, and relatively clear water overflowing from the screening tank 100 flows into the MBR membrane treatment tank 300 to be thoroughly purified. A screening plate 110 for separating the waste and the wastewater is arranged above the inside of the screening tank 100, one end of the screening plate 110 is inclined downwards and extends to the outside of the screening tank 100, and the waste slides out of the screening tank 100 along the screening plate 110 to be collected. The external part of the front end of the screening tank 100 is provided with a sedimentation tank 120 for collecting water overflowing from the sedimentation in the screening tank 100 so as to carry out secondary sedimentation on the water, and then the water flows into the MBR membrane treatment tank 300 for purification. The adjacent department in the bottom of screening pond 100 and sedimentation tank 120 all is provided with the heavy thick liquid seat 101 of formula of sinking, and the thick liquid seat 101 that sinks promptly is located one end and the position low to form the formula of sinking structure, so that mud piles up here smoothly, is convenient for concentrate the extraction. One side of the bottoms of the two slurry settling seats 101 is provided with a slurry pumping device 130 for pumping the slurry at the bottoms of the screening tank 100 and the settling tank 120 into the slurry tank 200, and the top of the slurry pumping device 130 is provided with an electromagnetic cylinder 135 for magnetically sucking the slurry metal, so that the metal parts in the slurry can be cleaned, and the metal pollution to the land can be avoided. The top surface of the screening plate 110 is symmetrically provided with a plurality of water seepage holes 111 along the length direction thereof, so that the wastewater can be leaked into the screening tank 100. The bottom surface of the sieving plate 110 is provided with a dirt cleaning mechanism 140 for dredging the water seepage holes 111, so that the water seepage holes 111 are prevented from being blocked by wastes to influence the leakage of the waste water. The cleaning mechanism 140 comprises a cleaning electric cylinder 141 providing thrust and a plurality of linkage rods 144 driven by the cleaning electric cylinder 141, the linkage rods 144 are symmetrically and slidably distributed on the bottom surface of the screening plate 110, a cleaning block 146 inserted into the water seepage holes 111 is arranged inside the linkage rods 144, the linkage rods 144 are driven to move to the lower side of the row of the water seepage holes 111, and the cleaning block 146 is ejected to eject waste in the water seepage holes 111.

Specifically, the linkage rod 144 is of a rectangular parallelepiped structure, guide pillar holes 1441 are formed in the middle of the long side of the linkage rod 144 and at two ends of the long side of the linkage rod, guide pillars 116 are symmetrically fixed on the bottom surface of the screening plate 110 in a direction parallel to the width direction of the screening plate, the guide pillars 116 are inserted into the guide pillar holes 1441 at two ends of the long side of the linkage rod 144 and can slide, return springs 1160 are sleeved at two ends of the guide pillars 116, the linkage rod 144 is made to stably slide on the bottom surface of the screening plate 110 by the aid of the guide pillars 116, and the return springs 1160 can release elastic force to. The telescopic direction of the output shaft of the electric decontamination cylinder 141 is consistent with the length direction of the sieving plate 110, the front end of the output shaft of the electric decontamination cylinder 141 is fixed with a push block 142 in an isosceles triangle structure, two inclined planes of the push block 142 are connected with push posts 143 in a sliding manner, the push posts 143 are inserted into and slide in guide post holes 1441 in the middle of the long side of the linkage rod 144, and rings are tightly sleeved on the outer side surfaces of the push posts 143 and positioned on the two side surfaces of the linkage rod 144, so that the linkage rod 144 is driven to move smoothly when the push posts 143 move, and along with the propulsion of the push block 142, the push posts 143 are pressed by the inclined planes of the push block 142 to move axially towards the push posts 143, and further the linkage rod 144 is driven to move to the lower part of a row.

Furthermore, the top surface of the linkage rod 144 is provided with a sinking groove 1440 corresponding to the position of the water seepage hole 111, a pressure spring 145 is embedded in the sinking groove 1440, the pressure spring 145 is tightly adhered to the cleaning block 146, and after the linkage rod 144 is pushed to the lower part of a row of the water seepage holes 111, the cleaning block 146 is pushed to the water seepage hole 111 under the elastic action of the pressure spring 145, so that the waste in the cleaning block is ejected out, and the cleaning block is dredged. The edge at dirt cleaning block 146 towards screening board 110 middle part is equipped with the fillet, the edge at infiltration hole 111 middle part dorsad screening board 110 is equipped with the fillet, when the electronic jar 141 drive ejector pad 142 of decontaminating resets, reset spring 1160 promotes the gangbar 144 and resets, the fillet of dirt cleaning block 146 is convenient for the smooth relative slip of fillet in infiltration hole 111, avoid taking place to interfere, thereby make dirt cleaning block 146 break away from smoothly from infiltration hole 111, wherein the flexible volume of pressure spring 145 is less than the thickness of dirt cleaning block 146, make dirt cleaning block 146 peg graft in heavy groove 1440 all the time, it slides from top to bottom to be driven by pressure spring 145.

Specifically, a slurry outlet 103 communicated with the inside of the screening tank 100 is formed in one side surface of the slurry settling seat 101, the slurry pumping device 130 comprises a power-providing slurry pumping machine 131, a slurry pumping pipe 132 inserted into a slurry inlet pipe of the slurry pumping machine 131 and a slurry outlet pipe 133 inserted into a slurry outlet pipe of the slurry pumping machine 131, two ends of the slurry outlet pipe 132 are fixedly connected with slurry outlets 103 of the screening tank 100 and the settling tank 120 through bolts respectively, and slurry settled in the bottoms of the screening tank 100 and the settling tank 120 can be pumped by starting the slurry pumping machine 131 to be conveyed and transferred.

Further, the slurry outlet pipe 133 extends upwards to the upper side of the slurry tank 200, the top end of the slurry outlet pipe 133 is communicated with the screening pipe 134, the electromagnetic cylinder 135 is in sleeve fit with the screening pipe 134, the electromagnetic cylinder 135 is made of an iron material and is of a cylindrical structure, the electric coil 136 is wound outside the electromagnetic cylinder 135, the storage battery 137 and the button switch 138 are arranged on one side of the electric coil 136, the button switch 138 and the storage battery 137 are sequentially and electrically connected through conducting wires, and it is known from the current magnetic effect that when current passes through the electric coil 136, a magnetic field can be generated around the conducting wires, so that the electromagnetic cylinder 135 is magnetized, and an even magnetic field is formed inside the electromagnetic cylinder, and therefore metal in falling slurry in the screening pipe 134 is adsorbed on the inner wall of the screening pipe.

In addition, the rear part of the top of the screening pool 100 is transversely provided with an outlet 102, the bottom end of the screening plate 110 is provided with a lower sliding section 112 which penetrates through the outlet 102, and the lower sliding section 112 can guide the wastes to a garbage collection position to be treated in a centralized manner. The limiting plate 117 is vertically arranged on the bottom surface of the top end of the lower sliding section 112, the limiting plate 117 is clamped on the inner side of the bottom of the outlet 102, and the top end of the screening plate 110 is lapped on the top edge of the screening pool 100, so that the screening plate 110 is quickly assembled and disassembled. The top end of the screening plate 110 is welded with a pipe sleeve 113 for sheathing the waste and wastewater conveying pipe without manual grasping. Sleeve columns 1130 in a stepped shaft structure are symmetrically arranged on the outer side of the sleeve 113, and a pipe clamping plate 114 for clamping a waste water conveying pipe is arranged below the sleeve 113. The top corner of tube clamping plate 114 is provided with a lantern ring 1140 which is sleeved with the small diameter section of sleeve column 1130, a torsion spring 115 is sleeved between lantern ring 1140 and the small diameter section of sleeve column 1130, the large diameter end face of sleeve column 1130 is provided with a jack 1131, one end of torsion spring 115 is provided with a straight extending section and the extending section is spliced with jack 1131, the other end of torsion spring 115 is provided with a bending section and the bending section is clamped outside the lantern ring 1140, so that tube clamping plate 114 clamps the conveying tube under the torsion action of torsion spring 115. A flow guide cover 150 is communicated between the top parts of the screening tank 100 and the sedimentation tank 120, and the flow guide cover 150 is inclined downwards, so that water flows along the flow guide cover naturally.

When the mud is separated and conveyed, the waste and wastewater conveying pipe is sleeved into the pipe sleeve 113 and clamped by the pair of pipe clamping plates 114, the water pump at the other end of the conveying pipe is started to pump the waste and wastewater mixed liquid out of the conveying pipe and fall onto the screening plate 110 at the top of the screening pool 100 to flow along the top surface of the screening pool, wherein the wastewater falls into the screening pool 100 from the water seepage hole 111, the bulky waste slides out of the screening pool 100 to fall and be collected, the wastewater precipitates in the screening pool 100, the precipitated water rises up in an accumulated manner and flows into the sedimentation pool 120 from the flow guide cover 150 for secondary precipitation, the slurry pumping machine 131 is started to pump and convey the slurry precipitated in the screening pool 100 and the sedimentation pool 120, and the button switch 138 is pressed to connect the electric coil 136 to generate a magnetic field inside the electromagnetic cylinder 135, so that metal pieces in the falling slurry are adsorbed, and the slurry is cleaned.

A slurry forming tank 210 for dehydrating slurry is arranged in the bottom of the slurry tank 200, and a plurality of water filtering holes 2100 are formed in the bottom of the slurry forming tank 210, so that water squeezed and dehydrated by the slurry flows out of the water filtering holes 2100. A collecting box 220 for collecting metal is arranged in the top of the mud pit 200, when the current of the electric coil 136 is cut off, the electromagnetic cylinder 135 loses magnetism, and metal parts fall into the collecting box 220 to be collected in a centralized way. The inside of the slurry forming tank 210 is provided with a rotatable press roll 211 so as to form a rotating extrusion force, the press roll 211 is coaxial with the central shaft of the slurry forming tank 210, the press roll 211 is in a conical structure, the small-diameter end of the press roll is coaxially connected with a speed reducing motor 212, the outer side of the press roll 211 is provided with a spiral pressing sheet 2110 for conveying and extruding slurry, the outer side of the spiral pressing sheet 2110 is equal to the inner diameter of the slurry forming tank 210, so that the slurry entering the slurry forming tank 210 is rotated by the spiral pressing sheet 2110 to be pushed to the large-diameter end of the press roll 211, and the slurry is gradually extruded and. One end of the mud forming tank 210 is open and penetrates the mud pit 200, the large diameter end of the press roll 211 is located at the open end of the mud forming tank 210, and the large diameter of the press roll 211 is smaller than the inner diameter of the mud forming tank 210, so that mud passes through. The top of the closed end of the slurry forming tank 210 is communicated with a feed hopper 215, the feed hopper 215 is positioned above the small-diameter end of the press roll 211, and the feed hopper 215 is arranged at the position, so that the slurry is favorably introduced due to the large internal space of the slurry forming tank 210. The sizing pipe 134 is positioned directly above the feed hopper 215 so that the falling mud passes smoothly into the mud forming tank 210. The collecting box 220 is of a triangular frame structure, the material receiving box 221 is arranged on the bottom surface of the feeding end of the collecting box 220, the material receiving electric cylinder 222 for driving the material receiving box 221 to stretch and retract is installed behind the material receiving box 221, the material receiving box 221 can stretch to the position right below the slurry outlet end of the slurry pumping device 130, and after the electric coil 136 is powered off, the adsorbed metal pieces fall onto the material receiving box 221 and then roll into the collecting box 220. The two sides and the vertical side of the collecting box 220 are provided with an outward extending edge 223 so as to be lapped on the top edge of the mud pit 200, and the metal pieces can be conveniently disassembled, assembled and poured.

Specifically, the large-diameter end of the press roll 211 is provided with a support 214, and a bearing is embedded in the center of the support 214 and coaxially connected with the press roll 211, so that the press roll 211 is supported and stably rotated. The front end of the press roll 211 is provided with a pressing plate 213, the inner end surface of the pressing plate 213 is provided with a baffle ring 2130, and the baffle ring 2130 is in a cone frustum structure, so that the slurry is extruded out from a gap between the baffle ring 2130 and the press roll 211. The outer end face of the pressing plate 213 is provided with a fixing column 2131 inserted into the support 214, so that the pressing plate 213 is stably placed. The bottom surface of the mud pit 200 is provided with a support platform 201, and a material leakage port 202 is arranged on the top surface of the support platform 201 and below the outlet of the mud forming tank 210, so that the extruded mud falls from the material leakage port 202 and falls into a collector.

When the slurry is squeezed and dewatered, the speed reducing motor 212 is started to drive the squeezing roller 211 to rotate, the rotating spiral pressing sheet 2110 squeezes the slurry to move towards the opening of the slurry forming tank 210, the squeezed water is drained from the water filtering holes 2100, the dewatered slurry is squeezed out of the slurry forming tank 210 and then falls from the material leaking port 202 to be collected, the material receiving electric cylinder 222 is started again to drive the material receiving box 221 to extend to the position right below the screening pipe 134, after the slurry pumping device 130 stops delivering the slurry, the electric coil 136 is powered off, the electromagnetic cylinder 135 loses magnetism, metal pieces adsorbed on the inner wall of the screening pipe 134 fall onto the material receiving box 221, and then roll into the collecting box 220 to be collected in a concentrated mode.

In addition, the MBR membrane treatment tank 300 is internally provided with a side frame 314 which is formed by welding stainless steel pipes, does not rust, and is durable. The inside of the side frame 314 is provided with a water collecting mechanism 310 and a plurality of MBR membrane modules 320. The water collecting mechanism 310 comprises a U-shaped water pumping pipe 311 arranged at the top of the side frame 314, a water pump 312 is installed at one side of the middle of the water pumping pipe 311, and a water inlet pipe of the water pump 312 penetrates through the outer wall of the MBR membrane treatment tank 300 and is inserted into a T-shaped pipe in the middle of the water pumping pipe 311, so that the water pump 312 pumps filtered water in the water pumping pipe 311. The bottom surfaces of two sides of the water pumping pipe 311 are communicated with the pipe connectors 3110 at equal intervals, the clean water pipe 313 is inserted below the pipe connectors 3110, the inner side surface of the clean water pipe 313 is provided with a plurality of water inlet holes 3130, the bottom end of the clean water pipe 313 is sleeved with the support rod 315, the support rod 315 is fixed on the side frame 314 through bolts, and the water pumping pipe 311 is fixed on the side frame 314 through a pipe clamp, so that the water collecting mechanism 310 is stably placed.

Specifically, the MBR membrane module 320 includes water filtering pipes 322 tightly sleeved with the clean water pipe 313, pipe grooves 323 are formed on the inner side surfaces of the water filtering pipes 322 along the axial direction of the water filtering pipes, an MBR membrane 321 is bonded between the pipe grooves 323 of the two water filtering pipes 322, the MBR membrane is mainly polyvinylidene fluoride, polyvinyl chloride (PVC), polypropylene (PP), and the like, and is generally prepared into a microfiltration membrane (with an aperture of 0.1-1 μm) or an ultrafiltration membrane (with an aperture of 1 nm-0.05 μm) to allow water molecules to permeate, and to block other residues in sewage, and sealant is coated on the upper end and the lower end of the MBR membrane 321 to prevent the water molecules from permeating into the water filtering pipes 322 from the two sides of the MBR membrane 321, and then enters the clean water pipe 313 from a water inlet 3130 to be pumped by the.

Further, a water outlet tank 400 is arranged outside the front end of the MBR membrane treatment tank 300, a disinfection chamber 401 and a clear water chamber 402 are arranged inside the water outlet tank 400 in a separated manner, and disinfection powder can be poured into the disinfection chamber 401 to further disinfect the purified water. The water pump 312 is located above the disinfection chamber 401, so that the water pump 312 pumps water purified by the MBR membrane 321, the water is conveyed into the disinfection chamber 401, when the disinfection water rises to the top of the clear water chamber 402, the water overflows into the disinfection chamber, the self-priming pump 403 is installed at the corner of the top of the water outlet pool 400 and above the clear water chamber 402, and the water pumping pipe of the self-priming pump 403 extends to the bottom of the clear water chamber 402 for pumping clear water for external use.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A process for recycling waste in sewage treatment is characterized in that: the method comprises the following steps:

firstly, a waste and wastewater separation stage:

II, a slurry conveying stage:

thirdly, slurry extrusion dehydration stage:

2. The process for recycling waste in sewage treatment according to claim 1, wherein: the top rear in screening pond has transversely seted up out the thing mouth, and the one end downward sloping of screening board just extends to the outside in screening pond, and the bottom of screening board is equipped with the gliding section that passes out the thing mouth, and the top bottom surface of gliding section is vertical to be equipped with the limiting plate.

3. The process for recycling waste in sewage treatment according to claim 1, wherein: the top welding of screening board has the pipe box, the outside symmetry of pipe box is equipped with the cover post that is step axle construction, the jack has been seted up to the big footpath terminal surface of cover post, the below of pipe box is provided with double-layered tube sheet, the top corner of double-layered tube sheet is equipped with the lantern ring that cup joints with cover post path section, the cover is equipped with the torsional spring between lantern ring and the cover post path section, torsional spring one end is equipped with straight extension section and pegs graft with the jack, the other end of torsional spring is equipped with the section of bending and the section joint of bending in the outside of lantern ring, the intercommunication has the kuppe between screening pond and.

4. The process for recycling waste in sewage treatment according to claim 1, wherein: the screening pond and the adjacent department in bottom of sedimentation tank all are provided with the heavy thick liquid seat of formula of sinking, and the play thick liquid mouth that communicates with screening pond internal portion is seted up to a side of heavy thick liquid seat, and the pulp extractor advances the thick liquid pipe and pegs graft and has the pulp pumping pipe, and the pulp extractor goes out the thick liquid pipe and pegs graft and have a thick liquid pipe, and the both ends of going out the thick liquid pipe pass through bolt fixed connection with the play thick liquid mouth of screening pond and sedimentation tank respectively.

5. The process for recycling waste in sewage treatment according to claim 4, wherein: go out the top that the thick liquid pipe upwards extended to the mud pit, the top intercommunication that goes out the thick liquid pipe has the screening pipe, and the screening pipe is located the feeder hopper directly over, and an electromagnetism section of thick bamboo and the cooperation of screening pipe cup joint, the outside winding of an electromagnetism section of thick bamboo have the electric coil, and one side of electric coil is provided with battery and button switch, and electric coil, button switch and battery pass through the wire electric connection in proper order.

6. The process for recycling waste in sewage treatment according to claim 1, wherein: the utility model discloses a screening board, including screening board, the bottom surface of screening board is installed the mechanism of decontaminating in mediation infiltration hole, and the mechanism of decontaminating is including the electronic jar of decontaminating that provides thrust and by a plurality of gangbars of electronic jar driven of decontaminating, and the gangbar is at the bottom surface symmetrical sliding distribution of screening board, and the inside of gangbar is provided with the piece of decontaminating of pegging graft with the infiltration hole.

7. The process for recycling waste in sewage treatment according to claim 6, wherein: the utility model discloses a screening board, including the gangbar, the gangbar is cuboid structure and the middle part of its long avris face and both ends department has all seted up the guide pillar hole, the bottom surface of screening board and be on a parallel with its width direction symmetry and be fixed with the guide pillar, the guide pillar is pegged graft and slidable with the guide pillar hole of the long avris both ends department of gangbar, the both ends cover of guide pillar is equipped with reset spring, the flexible direction of output shaft of electronic jar of decontaminating is unanimous with the length direction of screening board, the output shaft front end of electronic jar of decontaminating is fixed with the ejector pad that is the isosceles triangle structure, sliding connection has the kickpost on two inclined planes of ejector pad, the kickpost is pegged graft.

8. The process for recycling waste in sewage treatment according to claim 7, wherein: the heavy groove that corresponds with infiltration hole position is seted up to the top surface of gangbar, and the inside in heavy groove inlays and is equipped with the pressure spring, and the pressure spring closely bonds with the piece of decontaminating, and the piece of decontaminating is equipped with the fillet towards the edge at screening board middle part, and the edge at infiltration hole dorsad screening board middle part is equipped with the fillet.

9. The process for recycling waste in sewage treatment according to claim 1, wherein: the outer side of the spiral pressing sheet is equal to the inner diameter of the slurry forming tank, the major diameter of the pressing roller is smaller than the inner diameter of the slurry forming tank, and the major diameter end of the pressing roller is located at the opening end of the slurry forming tank.

10. The process for recycling waste in sewage treatment according to claim 9, wherein: the large-diameter end of the squeezing roller is provided with a support, a bearing is embedded in the center of the support and is coaxially connected with the squeezing roller, a pressing plate is arranged at the front end of the squeezing roller, a baffle ring is arranged on the inner end face of the pressing plate, a fixing column spliced with the support is arranged on the outer end face of the pressing plate, a support table is arranged on the bottom face of the mud pit, and a material leakage port is formed in the top face of the support table and below an outlet of the mud forming tank.