CN117504405B - Kitchen garbage size mixing desanding device - Google Patents
Kitchen garbage size mixing desanding device Download PDFInfo
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- CN117504405B CN117504405B CN202410014035.4A CN202410014035A CN117504405B CN 117504405 B CN117504405 B CN 117504405B CN 202410014035 A CN202410014035 A CN 202410014035A CN 117504405 B CN117504405 B CN 117504405B
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- filter cartridge
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- 238000002156 mixing Methods 0.000 title claims abstract description 30
- 239000010813 municipal solid waste Substances 0.000 title description 5
- 238000003756 stirring Methods 0.000 claims abstract description 102
- 239000007788 liquid Substances 0.000 claims abstract description 96
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 239000004576 sand Substances 0.000 claims abstract description 33
- 239000010806 kitchen waste Substances 0.000 claims abstract description 19
- 238000004537 pulping Methods 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims description 71
- 238000001125 extrusion Methods 0.000 claims description 55
- 238000007790 scraping Methods 0.000 claims description 13
- 230000018044 dehydration Effects 0.000 claims description 9
- 238000006297 dehydration reaction Methods 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 8
- 239000011229 interlayer Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 abstract description 122
- 239000007787 solid Substances 0.000 abstract description 120
- 238000000926 separation method Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 230000000694 effects Effects 0.000 description 16
- 230000009471 action Effects 0.000 description 9
- 230000005484 gravity Effects 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a kitchen waste pulping and desanding device, which relates to the technical field of kitchen waste separation treatment, and comprises a desanding tank and a screw conveyor, wherein the desanding tank comprises a tank body, a filter cylinder and a stirring mechanism, the filter cylinder is coaxially arranged in the tank body, and the stirring mechanism is arranged in the tank body; the tank body is provided with a feed inlet, a liquid outlet, a first discharge opening and a second discharge opening, the feed inlet is opposite to the side wall of the filter cartridge, the liquid outlet is arranged at the upper part of the tank body, the first discharge opening is arranged at the bottom of the tank body and is communicated with the screw conveyor, the setting height of the second discharge opening is greater than the setting height of the upper edge of the filter cartridge, and the second discharge opening is communicated with the screw conveyor through a discharge pipe; the stirring mechanism comprises a stirring driving piece, a stirring shaft, an axial flow blade and a rotational flow blade, and the stirring driving piece is connected with the stirring shaft; the cyclone blade has the advantages of high efficiency of size mixing and sand removal and less solid impurity residues, and the set height of the cyclone blade is larger than that of the axial flow blade.
Description
Technical Field
The invention relates to the technical field of kitchen waste separation treatment, in particular to a kitchen waste size mixing and sand removing device.
Background
Solid impurities mixed in the kitchen waste are required to be subjected to pulp mixing and sand removal in a filtering and sedimentation mode. Chinese patent application number CN202321293224.7 discloses a kitchen garbage thick liquids sand removing device, including a jar body and conveyer, set up feed inlet, liquid outlet and relief valve on the jar body, the height that the feed inlet set up is less than the height that the discharge gate set up, and the relief valve sets up in the bottom of jar body. An annular sand baffle is arranged on the inner wall of the tank body between the feed inlet and the discharge outlet. During operation, kitchen waste slurry enters the tank body from the feed inlet, solid impurities with heavier specific gravity are settled under the action of gravity and the blocking of the sand baffle, and liquid is discharged from the liquid outlet. The conveyor adopts the auger, and solid impurity and partial liquid are discharged from the discharge valve and are carried through the conveyor, realizes the separation of solid impurity and liquid.
Among the above-mentioned sand removal device, annular sand baffle can not block all solid impurity well, and solid impurity separation efficiency is lower, and the solid impurity content of liquid outlet play liquid is great, and some light floating impurity is difficult to get rid of through subsiding, and whole edulcoration sand removal efficiency is not high. In addition, the tank body of the existing slurry mixing and sand removing device is internally provided with slurry mixing effect of rotating and mixing the slurry through the stirring paddles, but the rotating stirring can only stir the mixing paddles in the plane where the stirring paddles are located, so that the slurry with different specific gravities is easy to generate layering conditions, some grease with lighter specific gravities floats on the upper layer, some organic slurry with heavier specific gravities is settled to the lower layer, the slurry output from the discharge port is uneven, the consistency of the mixing stirring is poor, and the processing treatment of the slurry in the subsequent process is not facilitated.
Disclosure of Invention
The invention aims to provide a kitchen waste pulping and desanding device which has a good pulping function, the output slurry is uniformly mixed and stirred, the subsequent process treatment is convenient, and the impurity and desanding efficiency is higher and the effect is better.
The technical aim of the invention is realized by the following technical scheme:
the invention provides a kitchen waste pulp mixing and sand removing device, which comprises a sand removing tank and a spiral conveyor, wherein the sand removing tank comprises a tank body, a filter cylinder and a stirring mechanism, the filter cylinder is coaxially arranged in the tank body, and the stirring mechanism is arranged in the tank body;
the tank body is provided with a feed inlet, a liquid outlet, a first discharge outlet and a second discharge outlet, the liquid outlet is arranged at the upper part of the tank body, the first discharge outlet is arranged at the bottom of the tank body and is communicated with the screw conveyor, the second discharge outlet is arranged at a height greater than the upper edge of the filter cartridge, and the second discharge outlet is communicated with the screw conveyor through a discharge pipe;
the stirring mechanism comprises a stirring driving piece, a stirring shaft, an axial flow blade and a rotational flow blade, wherein the stirring shaft vertically penetrates through the tank body, and the stirring driving piece is connected with the stirring shaft; the axial flow blades and the rotational flow blades are fixedly arranged on the stirring shaft; a flow guide sleeve sleeved on the periphery of the axial flow blade is arranged in the tank body, and the axial flow blade is matched with the flow guide sleeve to drive slurry at the axial flow blade to flow upwards along the stirring shaft; the setting height of the cyclone blade is larger than that of the axial flow blade, and the cyclone blade is used for driving slurry on the upper portion of the tank body to rotate to generate cyclone.
In the scheme, when the kitchen waste size mixing and sand removing device works, the size enters the tank body from the feeding port, the size is blocked and filtered by the filter cylinder, and solid impurities in the size cannot directly enter the liquid outlet; the heavier solid impurities are settled downwards under the action of gravity, so that the solid impurities with heavier specific gravity are enriched at the lower part of the tank body, the slurry enriched with organic matters at the upper part of the tank body is discharged from a liquid outlet at the upper part of the tank body for further processing treatment, the slurry enriched with the heavier solid impurities is discharged from a first discharge outlet at the lower part of the tank body to a screw conveyor, and the solid impurities are conveyed and discharged by the screw conveyor.
The stirring driving piece drives the stirring shaft to rotate, the axial flow blade and the flow guiding sleeve are matched to lift the slurry upwards along the stirring shaft, the slurry at the flow guiding sleeve flows upwards, light solid impurities in the slurry flow upwards, the cyclone blade above the axial flow blade rotates to generate cyclone, the disturbance is lifted to the light solid impurities above the axial flow blade, and light floaters such as plastic residues and the like can flow into the screw conveyor from the second discharge opening above the charging basket through the discharge pipe to be conveyed and discharged. Compared with the existing size mixing and sand removing device, the device provided by the invention has the advantages that the light floating residues are separated and discharged through the discharge port by utilizing the size rotational flow generated at the upper part of the tank body, so that the solid impurity separation efficiency and the solid impurity separation effect are improved. Simultaneously, the cartridge filter separates the jar body into inside and outside two regions, and axial flow paddle and water conservancy diversion sleeve cooperation in the cartridge filter drive jar internal thick liquids along the (mixing) shaft upflow to stir thick liquids in vertical direction, whirl paddle stirs thick liquids in the horizontal direction, make jar thick liquids misce bene on body upper portion, organic matter, water, the oil material in the thick liquids are difficult for layering, promote jar body upper portion thick liquids's size mixing effect, and liquid outlet exhaust thick liquids misce bene is favorable to the thick liquids to flow in the pipeline and further processing to thick liquids in the follow-up technology.
Further, the flow sleeve is integrally formed at the lower part of the filter cartridge, and one end of the flow sleeve, which faces the filter cartridge, is in a flaring horn shape; the filter cartridge is in the shape of an inverted circular truncated cone with a large upper part and a small lower part, the stirring shaft and the filter cartridge are coaxially arranged, the upper end and the lower end of the filter cartridge are both open, and the stirring shaft penetrates through the filter cartridge.
In this scheme, the cartridge filter is big-end-up's round platform form, and the heavier solid impurity of the cartridge filter inner wall of being convenient for subsides downwards and flows from cartridge filter lower extreme opening. The water conservancy diversion sleeve integrated into one piece is in cartridge filter lower part, and water conservancy diversion sleeve and cartridge filter compact structure, and the flaring horn-shaped one end of water conservancy diversion sleeve is connected with the cartridge filter for water conservancy diversion sleeve and cartridge filter inner chamber transition are smooth natural. Stirring shaft, cartridge filter and jar body coaxial setting, the cartridge filter is passed to the (mixing) shaft for the epaxial axial flow paddle of (mixing) shaft can carry the thick liquids at jar body middle part upward, and this in-process heavier solid impurity highly is lighter than the ascending height of light solid impurity, thereby under the effect of whirl paddle, when light solid impurity is discharged through the second bin outlet, heavier solid impurity is blocked and can not enter into near the export by cartridge filter inner wall, thereby can not make near the export solid impurity increase, guarantees that liquid outlet thick liquid solid impurity content keeps at lower level.
Further, the tank body is also provided with a supporting mechanism, the supporting mechanism comprises a supporting outer ring, a supporting inner ring and supporting bars, the supporting bars are uniformly distributed and connected between the supporting outer ring and the supporting inner ring in circumference, the supporting outer ring is fixedly arranged on the inner wall of the tank body, and the filter cartridge is fixedly arranged on the supporting inner ring.
In this scheme, jar body supports the cartridge filter through supporting mechanism, supports outer loop and support the inner loop and is fixed in jar body and cartridge filter respectively and supports through the support bar for jar body supports stably to the cartridge filter, is convenient for guarantee the concentricity of jar body and cartridge filter simultaneously. In addition, this kind of supporting means makes the intermediate layer between the difficult separation jar body of supporting mechanism and the cartridge filter for axial compressor paddle can be smoothly with thick liquids upwards promote, and, this kind of supporting structure easily installs and changes not unidimensional cartridge filter.
Further, the filter cartridge is connected with a flow guide pipe, and the feed inlet is communicated with the inner cavity of the filter cartridge through the flow guide pipe.
In this scheme, the feed inlet passes through the honeycomb duct and connects in the inner chamber of cartridge filter for feed inlet and liquid outlet are located the inside and outside both sides of cartridge filter respectively, thereby guarantee the filtration of cartridge filter to solid impurity and block the effect.
Further, the tank body comprises a cylindrical upper tank body, and the second discharge port is arranged along the horizontal tangential direction of the upper tank body; the setting height of the cyclone blade is the same as the setting height of the second discharge hole.
In this scheme, go up the jar body and be cylindric, the second bin outlet sets up along the horizontal tangential direction of last jar body, and the second bin outlet is located the tangent line of the horizontal circular cross-section of last jar body promptly to in the vortex that swirl paddle formed, the solid impurity of light can be thrown out to the second bin outlet along the tangential direction of last jar body in, the discharge of convenient light solid impurity. The setting height of the cyclone blade is the same as that of the second discharge hole, so that the effect of the vortex generated by the cyclone blade on the light solid impurities in the horizontal plane where the second discharge hole is located is best, and the light solid impurities are further discharged from the second discharge hole.
Further, the stirring mechanism further comprises a guide blade fixedly arranged on the stirring shaft, wherein the guide blade is connected between the axial flow blade and the rotational flow blade and used for guiding the slurry at the axial flow blade upwards to the position of the rotational flow blade.
In this scheme, the water conservancy diversion paddle sets up between axial compressor paddle and whirl paddle, and when the axial compressor paddle upwards promoted the thick liquids, the thick liquids can upwards move under the water conservancy diversion effect of water conservancy diversion paddle, promotes the mixing effect of thick liquids in the vertical direction. Meanwhile, when the guide blades rotate, heavier solid impurities are thrown out under the centrifugal action and are attached to the inner wall of the filter cartridge; the solid impurity centrifugal force of light is less, can continue upward movement and follow the discharge of second bin outlet under the ascending drive of axial flow paddle formation in cartridge filter inner chamber, from this through the setting of water conservancy diversion paddle, can make the thick liquids mix more even, can get rid of the heavier solid impurity in the thick liquids of upward flow under the axial flow paddle drive simultaneously, reduces the solid impurity of liquid outlet department, guarantees that the solid impurity content of liquid outlet liquid is in lower level.
Further, the length of the guide blade is gradually increased from bottom to top; the axial flow blade, the flow guiding blade and the rotational flow blade are connected into a whole from bottom to top.
In this scheme, owing to be close to the upper portion of water conservancy diversion paddle more, the thick liquids radially diverges the degree along the (mixing) shaft under the centrifugal action of water conservancy diversion paddle more, and the length of water conservancy diversion paddle increases gradually from bottom to top to guarantee the water conservancy diversion effect of water conservancy diversion paddle to the thick liquids flow that diverges gradually. Simultaneously, centrifugal force that the water conservancy diversion paddle provided increases from bottom to top gradually to make more be close to cartridge filter top, heavier solid impurity's content is less, guarantees that the solid impurity content of liquid outlet is lower.
The axial flow blade, the flow guiding blade and the rotational flow blade are connected into a whole from bottom to top, so that the overall structural strength is better, the structure is more compact, the connection of the axial flow blade, the flow guiding blade and the rotational flow blade with a stirring shaft is facilitated, and meanwhile, the slurry flows continuously along the axial flow blade, the flow guiding blade and the rotational flow blade.
Further, the stirring mechanism further comprises a stirring blade and a scraping plate, wherein the stirring blade and the scraping plate are fixed on the stirring shaft, the stirring blade is arranged below the filter cartridge, and the length of the stirring blade is larger than the radius of the lower end of the filter cartridge; the tank body further comprises a lower tank body which is in an inverted circular table shape with a large upper part and a small lower part, the first discharging hole is formed in the bottom of the lower tank body, and the scraping plate is matched with the inner wall of the lower tank body.
In the scheme, the stirring blade is arranged below the filter cylinder, and when the stirring blade stirs, the slurry is stirred below the filter cylinder, so that solid impurities at the bottom of the tank body are mixed with the slurry, and the solid impurities are prevented from settling to the inner wall of the bottom of the tank body to cause the content of the solid impurities in the slurry at the bottom of the tank body to be reduced, so that the solid impurities discharged from the discharge port are reduced; the length of stirring paddle is greater than the radius of cartridge filter's lower extreme for stirring paddle can stretch out the intermediate layer department between cartridge filter and the internal lateral wall of jar, forms the vortex to the intermediate layer between cartridge filter and the internal wall of jar, makes jar body bottom thick liquids mix more evenly, further avoids heavier solid impurity settlement in the intermediate layer to jar body diapire or the unable warp beam paddle blade of light solid impurity to promote. The lower tank body is in an inverted circular table shape with a large upper part and a small lower part, so that heavier solid impurities are enriched to the bottom of the tank body and discharged from the first discharge hole. The scraping plate is matched with the inner wall of the lower tank body, so that solid impurities deposited on the bottom wall of the lower tank body can be scraped off well when the scraping plate rotates, and the solid impurities are discharged from the first discharge hole conveniently.
Further, the screw conveyor is obliquely arranged upwards along the direction away from the tank body, one end of the screw conveyor away from the tank body is connected with an extrusion dehydration mechanism, and the arrangement height of the extrusion dehydration mechanism is higher than the upper edge of the tank body; the extrusion dehydration mechanism comprises an outer cylinder body, an extrusion filter cylinder and a spiral extrusion plate, wherein the outer cylinder body is parallel to the spiral conveyor and coaxially sleeved outside the extrusion filter cylinder, the spiral extrusion plate is arranged in the extrusion filter cylinder and extends upwards along the axial direction of the extrusion filter cylinder in a spiral manner, an interlayer between the outer cylinder body and the extrusion filter cylinder is communicated with the tank body through a liquid return pipe, and the upper end of the extrusion filter cylinder is connected with a slag hole.
In this scheme, screw conveyer is along the direction upper slope setting of keeping away from the jar body, and screw conveyer promotes transportation solid impurity towards oblique upper direction promptly, and when screw conveyer promoted transportation solid impurity, liquid in the thick liquids flows downwards under the dead weight effect, reduces the liquid content of the solid impurity of finally carrying away.
The end of the screw conveyor, which is far away from the tank body, is further dehydrated through an extrusion dehydration mechanism, and specifically, solid impurities are extruded through a screw extrusion plate in a screw way, so that liquid in the solid impurities flows into an interlayer between the extrusion filter cylinder and the outer cylinder body, flows back into the tank body through a liquid return pipe, and the solid impurities with smaller liquid content are left to be discharged through a slag hole; meanwhile, the liquid return pipe can be used for continuously treating liquid components in the slurry in the screw conveyor in a tank body, so that the output of the liquid of the slurry is prevented from being improved, and the waste of organic matters is avoided.
Further, the outer diameter of the screw extruding plate gradually decreases in a direction away from the screw conveyor; the screw extrusion plate and the screw conveyor are connected to the same rotating motor.
In the scheme, along the direction away from the screw conveyor, the outer diameter of the screw extrusion plate is gradually reduced, and the part close to the screw conveyor has larger liquid content in the solid impurities, so that the diameter of the screw extrusion plate is larger, and the solid impurities are extruded and dehydrated conveniently; keep away from screw conveyer's part, solid impurity liquid content reduces, and here screw extrusion plate diameter is less to reduce the extrusion force, make things convenient for solid impurity to get into the slag notch, this kind of structure has guaranteed the extrusion force that solid impurity droped simultaneously, and its structure is comparatively reasonable.
The spiral extrusion plate and the spiral conveyor are connected to the same rotating motor, so that the rotating speeds of the spiral extrusion plate and the spiral conveyor are the same, the treatment process is continuous, and meanwhile, the number of motors is saved.
In summary, the invention has the following beneficial effects:
in the kitchen waste size mixing and sand removing device, the size is blocked and filtered by the filter cylinder, and solid impurities in the size cannot directly enter the liquid outlet; the axial flow blades and the flow guide sleeve are matched to lift the slurry upwards, and the cyclone blades mix the slurry above, so that the slurry in the liquid outlet is uniformly mixed, the slurry flowing out of the liquid outlet is not easy to delaminate, and the flow and subsequent treatment of the slurry are facilitated; in addition, suspended or floating light solid impurities in the slurry flow upwards, and the rotational flow blades above the axial flow blades rotate to generate vortex, so that the slurry mixed with the light solid impurities can flow into the screw conveyor from the second discharge opening above the charging basket through the discharge pipe, the solid impurity content in the liquid outlet is further reduced, and the solid impurity separation efficiency is improved.
Drawings
Fig. 1 is a schematic perspective view of a kitchen waste pulping and desanding device according to an embodiment of the invention.
Fig. 2 is a schematic structural view of a sand removal tank according to an embodiment of the present invention.
Fig. 3 is a schematic view showing a vertical sectional structure of a sand removal tank according to an embodiment of the present invention.
Fig. 4 is a schematic view showing a horizontal sectional structure of a sand removing tank according to an embodiment of the present invention.
Fig. 5 is a schematic perspective view of a stirring mechanism according to an embodiment of the present invention.
Fig. 6 is a schematic vertical sectional structure of an axial flow blade and a flow sleeve according to an embodiment of the present invention.
Fig. 7 is a schematic view showing a vertical sectional structure of a squeeze dewatering mechanism according to an embodiment of the present invention.
In the figure:
1000. kitchen waste pulp mixing and sand removing device; 100. a desanding tank; 110. a tank body; 111. a feed inlet; 112. a liquid outlet; 113. a first discharge port; 114. a second discharge port; 115. an upper tank body; 116. a lower tank body; 120. a filter cartridge; 121. a filter hole; 122. a flow sleeve; 130. a stirring mechanism; 131. a stirring driving member; 132. a stirring shaft; 133. axial flow blades; 134. swirl paddles; 135. a deflector blade; 136. stirring paddles; 137. a scraping plate; 140. a discharge pipe; 150. a flow guiding pipe; 160. a support mechanism; 161. supporting the outer ring; 162. supporting the inner ring; 163. a support bar; 200. a screw conveyor; 300. an extrusion dehydration mechanism; 310. an outer cylinder; 320. squeezing the filter cartridge; 330. a screw extrusion plate; 340. a slag outlet; 400. a liquid return pipe; 500. and rotating the motor.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The embodiment discloses a kitchen garbage size mixing sand removing device 1000, referring to fig. 1, the kitchen garbage size mixing sand removing device 1000 comprises a sand removing tank 100 and a screw conveyor 200, and the bottom of the sand removing tank 100 is communicated with the screw conveyor 200. The solid impurities in the slurry are enriched in the sand removal tank 100, the slurry enriched with the solid impurities is discharged into the screw conveyor 200 from the bottom of the sand removal tank 100, and the solid impurities are conveyed away by the screw conveyor 200, so that the slurry mixing and sand removal are realized.
Referring to fig. 1 to 3, the desanding tank 100 includes a tank body 110, a filter cartridge 120, and a stirring mechanism 130. The filter cartridge 120 is coaxially disposed in the tank 110, and the stirring mechanism 130 is disposed in the tank 110.
Referring to fig. 4, a feed inlet 111, a liquid outlet 112, a first discharge outlet 113 and a second discharge outlet 114 are provided on the can 110. The feed inlet 112 is arranged on the side wall of the tank 110, the liquid outlet 112 is arranged on the upper portion of the tank 110, the first discharge outlet 113 is arranged on the bottom of the tank 110 and is communicated with the screw conveyor 200, the second discharge outlet 114 is arranged at a height greater than the upper edge of the filter cartridge 120, and the arranged height is a distance compared with the ground. The second discharge port 114 is in communication with the screw conveyor 200 via a discharge pipe 140.
The can 110 includes an upper can 115 and a lower can 116. The upper tank 115 has a cylindrical shape, and the lower tank 116 has an inverted circular truncated cone shape. The upper tank 115 and the lower tank 116 are connected from top to bottom to enclose an inner cavity containing slurry. The feed inlet 111, the liquid outlet 112 and the second discharge outlet 114 are arranged on the upper tank 115, and the first discharge outlet 113 is arranged at the bottom of the lower tank 116.
When the kitchen waste size mixing and sand removing device 1000 works, sizing agent enters the tank body 110 from the feeding hole 111, the feeding hole 111 is opposite to the side wall of the filter cartridge 120, so that the sizing agent is blocked and filtered by the filter cartridge 120, and solid impurities in the sizing agent cannot directly enter the liquid outlet 112. The heavier solid impurities are settled downwards under the action of gravity, so that the solid impurities are enriched at the lower part of the tank body 110, the slurry enriched with organic matters at the upper part of the tank body 110 is discharged from the liquid outlet 112 at the upper part for further processing treatment, the slurry enriched with the solid impurities is discharged from the first discharge port 113 at the lower part of the tank body 110 to the screw conveyor 200, and the solid impurities are conveyed away by the screw conveyor 200, so that the separation of the solid impurities and the liquid matters with heavier specific gravity in the slurry is realized.
The filter cartridge 120 is connected with a flow guide pipe 150, and the feed inlet 111 is communicated with the inner cavity of the filter cartridge 120 through the flow guide pipe 150, so that the feed inlet 111 and the liquid outlet 112 are respectively positioned at the inner side and the outer side of the filter cartridge 120, and the filtering blocking effect of the filter cartridge 120 on solid impurities is ensured.
In this embodiment, the filter cartridge 120 is in the shape of an inverted truncated cone with a large top and a small bottom, and a plurality of filtering holes 121 for filtering are provided in the filter cartridge 120. The filter cartridge 120 and the lower tank 116 are in the shape of an inverted truncated cone with a large upper part and a small lower part, which is beneficial to the enrichment of solid impurities to the bottom of the tank 110 and the discharge of the solid impurities from a discharge port.
In addition, in other embodiments, the filter cartridge 120 and canister 110 may take other suitable shapes.
A flow sleeve 122 is connected to the lower portion of the filter cartridge 120, and in this embodiment, the flow sleeve 122 is integrally formed at the lower portion of the filter cartridge 120 by welding and is coaxially disposed with the filter cartridge 120. The flow sleeve 122 is flared toward one end of the filter cartridge 120, and the upper and lower ends of the filter cartridge 120 are open, so that the heavier solid impurities on the inner wall of the filter cartridge 120 settle downwards and flow out from the lower end opening of the filter cartridge 120. The arrangement mode makes the structure of the flow sleeve 122 and the filter cartridge 120 compact, and the transition between the flow sleeve 122 and the inner cavity of the filter cartridge 120 is smooth and natural.
A support mechanism 160 is provided in the can 110, and the support mechanism 160 includes a support outer ring 161, a support inner ring 162, and a support bar 163. The support outer ring 161 is coaxially and fixedly arranged on the inner wall of the upper tank 115. The support inner ring 162 is coaxially disposed within the support outer ring 161, and the support inner ring 162 and the support outer ring 161 are connected by a support bar 163. The supporting inner ring 162 is coaxially and fixedly sleeved outside the flow guiding sleeve 122. Thus, the canister 110 is supported stably to the filter cartridge 120, while ensuring concentricity of the canister 110 and the filter cartridge 120. In addition, the supporting means 160 is not easy to obstruct the interlayer between the tank 110 and the filter cartridge 120, and the stirring means 130 can smoothly stir the slurry in the interlayer.
Referring to fig. 3, the stirring mechanism 130 includes a stirring driver 131, a stirring shaft 132, an axial flow blade 133, and a swirl blade 134. The stirring shaft 132 vertically penetrates the tank 110, and the stirring driving member 131 is connected to the stirring shaft 132. The axial flow blades 133 and the rotational flow blades 134 are fixedly provided on the stirring shaft 132. The set height of the swirl blades 134 is greater than the set height of the axial flow blades 133. The axial flow blades 133 are disposed in the flow sleeve 122.
In this embodiment, the stirring driving member 131 is specifically a motor. In other embodiments, the stirring driver 131 may be any other suitable power source.
The stirring driver 131 drives the stirring shaft 132 to rotate, and the axial flow blades 133 rotate and cooperate with the flow guide sleeve 122 to drive the slurry at the axial flow blades 133 to flow upwards. Swirl blades 134 above the axial flow blades 133 rotate to generate a swirl.
Therefore, the axial flow blades 133 and the flow guide sleeve 122 are matched to drive the slurry to flow upwards, so that the slurry is stirred in the vertical direction, the rotational flow blades 134 stir the slurry in the horizontal direction, the slurry at the upper part of the tank body 110 is uniformly mixed, organic matters, water, oil and the like in the slurry are not easy to delaminate, the slurry mixing effect of the slurry at the upper part of the tank body 110 is improved, the slurry discharged from the liquid outlet 112 is uniformly mixed, and the flow of the slurry in a pipeline and the further processing treatment of the slurry in the subsequent process are facilitated.
Meanwhile, when the slurry flows upwards, the light solid impurities in the slurry flow upwards together, the cyclone blades 134 above the axial flow blades 133 rotate to generate vortex, so that the light solid impurities lifted to the upper side rotate along with the slurry, and the slurry mixed with the light solid impurities can flow from the second discharge opening 114 above the charging bucket to the screw conveyor 200 through the discharge pipe 140 to be conveyed away. The solid impurity content of the kitchen waste pulp mixing liquid outlet 112 is reduced, and meanwhile, light solid impurities are discharged through the second discharge port 114, so that the solid impurity content in the liquid discharged from the liquid outlet 112 is further reduced, and the solid impurity separation efficiency is improved.
In this embodiment, the stirring shaft 132, the filter cartridge 120, and the canister 110 are coaxially disposed. A stirring shaft 132 passes through the filter cartridge 120. When the axial flow paddle 133 on the stirring shaft 132 is matched with the flow guiding sleeve 122 to lift the slurry in the middle of the tank body 110, the rising height of the heavier solid impurities is smaller than that of the light solid impurities, so that under the action of the cyclone paddle 134, when the light solid impurities are discharged through the second discharge port 114, the heavier solid impurities are blocked by the inner wall of the filter cylinder 120 and settle, and therefore the solid impurities cannot enter the vicinity of the outlet, and further, the solid impurities near the liquid outlet 112 are not increased, and the content of the solid impurities in the liquid discharged from the liquid outlet 112 is ensured to be kept at a lower level.
The setting height of the swirl blades 134 is the same as the setting height of the second discharge opening 114, so that the vortex generated by the swirl blades 134 has the best effect on the light solid impurities in the horizontal plane where the second discharge opening 114 is located, and is further beneficial to discharging the light solid impurities from the second discharge opening 114.
Referring to fig. 3 and 4, in the present embodiment, the second discharge opening 114 is disposed along the horizontal tangential direction of the upper tank 115, that is, the second discharge opening 114 is located on the tangential line of the horizontal circular cross section of the upper tank 115, so that in the vortex formed by the swirl blades 134, the light solid impurities can be thrown out into the second discharge opening 114 along the tangential direction of the upper tank 115, thereby facilitating the discharge of the light solid impurities.
The stirring mechanism 130 also includes a deflector blade 135. The guide blades 135 are fixedly arranged on the stirring shaft 132, and the guide blades 135 are positioned in the filter cartridge 120 and arranged between the axial flow blades 133 and the rotational flow blades 134. When the slurry flows upwards under the cooperation of the axial flow blades 133 and the flow guide sleeve 122, the slurry can move upwards under the flow guide of the flow guide blades 135, and the mixing effect of the slurry in the vertical direction is improved. When the diversion blade 135 rotates, the heavier solid impurities are thrown out and attached to the inner wall of the filter cartridge 120 under the centrifugal action, the centrifugal force of the light solid impurities is smaller, the light solid impurities can continue to move upwards and are discharged from the second discharge port 114 under the driving of the upward flow formed by the axial flow blade 133 in the inner cavity of the filter cartridge 120, so that the slurry is more uniformly mixed, the heavier solid impurities in the upward flowing slurry can be removed, the solid impurities at the liquid outlet are reduced, and the solid impurity content of the liquid discharged from the liquid outlet 112 is ensured to be at a lower level.
Wherein, the guide blade 135 is a straight blade, and the length of the guide blade 135 increases gradually from bottom to top. As the slurry diverges more along the radial direction of the stirring shaft 132 under the centrifugal action of the guide blades 135, the length of the guide blades 135 increases gradually from bottom to top, thereby ensuring the guide effect of the guide blades 135 on the gradually diverged slurry flow. Meanwhile, the guide blades 135 which are gradually lengthened from bottom to top are matched with the filter cylinder 120 in the shape of an inverted circular truncated cone, and the centrifugal force provided by the guide blades 135 is gradually increased from bottom to top, so that the closer to the upper part of the filter cylinder 120, the smaller the content of heavier solid impurities is, and the lower range of the solid impurity content of the liquid outlet 112 is ensured.
In this embodiment, the axial flow blade 133, the guide blade 135 and the cyclone blade 134 are sequentially connected from bottom to top, and the axial flow blade 133, the guide blade 135 and the cyclone blade 134 are connected into a whole, so that the overall structural strength of the whole is better, the structure is more compact, the connection of the axial flow blade 133, the guide blade 135 and the cyclone blade 134 with the stirring shaft 132 is facilitated, and meanwhile, the slurry flows continuously along the axial flow blade 133, the guide blade 135 and the cyclone blade 134, so that the slurry mixing effect is improved.
Referring to fig. 5 and 6, the axial flow blades 133 are twisted from top to bottom in the rotational direction (direction indicated by an arrow in the drawing) of the stirring shaft 132 such that the axial flow blades 133 are disposed obliquely toward the rotational direction thereof, i.e., in the rotational direction of the axial flow blades 133, the lower edges of the axial flow blades 133 are located forward of the upper edges of the axial flow blades 133. So that the slurry below the axial flow blades 133 moves up along the surfaces of the axial flow blades 133 as the axial flow blades 133 rotate, thereby forming an upward flow.
The flow sleeve 122 is coaxially sleeved outside the axial flow blades 133, and the flow sleeve 122 is enclosed outside the axial flow blades 133 while supporting the filter cartridge 120 to guide the slurry flowing upwards. Together, the flow sleeve 122 and the axial flow blades 133 form an axial flow pump-like mechanism, the flow sleeve 122 corresponding to the pump casing of the axial flow pump.
Referring to fig. 3 and 5, the stirring mechanism 130 further includes a stirring blade 136 and a scraper 137. The stirring blade 136 is disposed below the filter cartridge 120 and is fixed to the stirring shaft 132. When stirring paddle 136 stirs, stir the thick liquids in cartridge filter 120 below for the solid impurity and the thick liquids of jar body 110 bottom mix, avoid solid impurity to sink to jar body 110 bottom inner wall and lead to the solid impurity content to drop and then lead to the reduction of bin outlet exhaust solid impurity in jar body 110 bottom thick liquids.
Wherein, the length of stirring paddle 136 is greater than the radius of the lower extreme of cartridge filter 120 for stirring paddle 136 can stretch out to the intermediate layer department between cartridge filter 120 and the jar body 110 inside wall, forms the vortex to the intermediate layer between cartridge filter 120 and the jar body 110 inside wall, makes jar body 110 bottom thick liquids mix more evenly, further avoids heavier solid impurity to sink to jar body 110 diapire or light solid impurity can't promote through axial compressor paddle 133.
The scraper 137 is fixed to the stirring shaft 132, and the scraper 137 is fitted in the bottom wall of the tank 110. The fit here means that the shape of the scraping plate 137 is the same as the shape of the inner wall of the lower tank 116, specifically, the two ends of the scraping plate 137 are inclined parallel to the inner wall of the lower tank 116, and the two ends of the scraping plate 137 are attached to the inner wall of the lower tank 116. Thereby scraping off the solid impurities deposited on the inner wall of the lower tank 116 by the rotation of the scraping plate 137, thereby facilitating the discharge of the solid impurities.
Referring to fig. 1, the screw conveyor 200 is disposed obliquely upward in a direction away from the can 110, that is, the screw conveyor 200 lifts and conveys solid impurities obliquely upward, so that when the screw conveyor 200 lifts and conveys solid impurities, liquid in slurry flows downward under the action of self weight, and the liquid content of the solid impurities finally conveyed away is reduced.
Referring to fig. 1 and 7, an extrusion dehydration mechanism 300 is connected to an end of the screw conveyor 200 remote from the can 110. The height of the squeeze dewatering mechanism 300 is greater than the height of the upper rim of the can. The extrusion dewatering mechanism 300 comprises an outer cylinder 310, an extrusion filter cylinder 320 and a spiral extrusion plate 330, wherein the outer cylinder 310 is parallel to the spiral conveyor 200 and coaxially sleeved outside the extrusion filter cylinder 320, the spiral extrusion plate 330 is arranged in the extrusion filter cylinder 320 and extends upwards along the axial direction of the extrusion filter cylinder 320 in a spiral manner, an interlayer between the outer cylinder 310 and the extrusion filter cylinder 320 is communicated with the tank body 110 through a liquid return pipe 400, and the upper end of the extrusion filter cylinder 320 is connected with a slag hole 340.
The end of the screw conveyor 200 remote from the tank 110 further separates solid impurities from the liquid by the squeeze dewatering mechanism 300. Specifically, the solid impurities are screw-extruded by the screw extrusion plate 330, so that the liquid in the solid impurities flows into the interlayer between the extrusion filter cartridge 320 and the outer cylinder 310, and flows back into the tank 110 through the liquid return pipe 400, and the remaining solid impurities with smaller liquid content are discharged through the slag hole 340. Meanwhile, the liquid return pipe 400 also enables the upper end of the screw conveyor 200 to be communicated with the tank body 110, so that liquid components in the slurry discharged from the discharge port are sent to the tank body 110 for continuous treatment, the liquid output of the slurry is improved, and the waste of organic matters is avoided.
Wherein the outer diameter of the screw extrusion plate 330 is gradually reduced in a direction away from the screw conveyor 200, and correspondingly, the extrusion filter cartridge 320 is in a horn shape in which the inner diameter is gradually reduced in a direction away from the screw conveyor 200. The amount of liquid contained in the solid impurities is large at a portion near the screw conveyor 200, where the diameter of the screw press plate 330 is large, so that the solid impurities are press-dehydrated. Keep away from screw conveyer 200's part, solid impurity liquid content reduces, and here screw extrusion plate 330 diameter is less to reduce the extrusion force, make things convenient for solid impurity to get into slag notch 340, this kind of structure has guaranteed the extrusion force that solid impurity dropouts simultaneously, and its structure is comparatively reasonable.
In this embodiment, the screw extrusion plate 330 and the screw conveyor 200 are connected to the same rotation motor 500, so that the rotation speeds of the two are the same, the treatment process is continuous, and the number of motors is reduced. In other embodiments, the screw press plate 330 and the screw conveyor 200 may be driven by different motors.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the invention are therefore intended to be embraced therein.
Claims (4)
1. The kitchen waste pulping and sand removing device is characterized in that the kitchen waste pulping and sand removing device (1000) comprises a sand removing tank (100) and a screw conveyor (200), the sand removing tank (100) comprises a tank body (110), a filter cartridge (120) and a stirring mechanism (130), the filter cartridge (120) is coaxially arranged in the tank body (110), and the stirring mechanism (130) is arranged in the tank body (110);
the novel filter is characterized in that a feed inlet (111), a liquid outlet (112), a first discharge outlet (113) and a second discharge outlet (114) are formed in the tank body (110), the liquid outlet (112) is formed in the upper portion of the tank body (110), the first discharge outlet (113) is formed in the bottom of the tank body (110) and is communicated with the screw conveyor (200), the second discharge outlet (114) is higher than the upper edge of the filter cartridge (120), and the second discharge outlet (114) is communicated with the screw conveyor (200) through a discharge pipe (140);
the stirring mechanism (130) comprises a stirring driving piece (131), a stirring shaft (132), an axial flow blade (133) and a rotational flow blade (134), wherein the stirring shaft (132) vertically penetrates through the tank body (110), and the stirring driving piece (131) is connected to the stirring shaft (132); the axial flow blades (133) and the rotational flow blades (134) are fixedly arranged on the stirring shaft (132); a flow guide sleeve (122) sleeved on the periphery of the axial flow blade (133) is arranged in the tank body (110), and the axial flow blade (133) is matched with the flow guide sleeve (122) to drive slurry at the axial flow blade (133) to flow upwards along the stirring shaft (132); the setting height of the cyclone blades (134) is larger than that of the axial flow blades (133), and the cyclone blades (134) are used for driving the slurry at the upper part of the tank body (110) to rotate to generate cyclone;
the flow guide sleeve (122) is integrally formed at the lower part of the filter cartridge (120), and one end of the flow guide sleeve (122) facing the filter cartridge (120) is in a flaring horn shape; the filter cartridge (120) is in an inverted truncated cone shape with a large upper part and a small lower part, the stirring shaft (132) and the filter cartridge (120) are coaxially arranged, the upper end and the lower end of the filter cartridge (120) are both open, and the stirring shaft (132) penetrates through the filter cartridge (120);
the tank body (110) is internally provided with a supporting mechanism (160), the supporting mechanism (160) comprises a supporting outer ring (161), a supporting inner ring (162) and supporting bars (163), the supporting bars (163) are circumferentially and uniformly connected between the supporting outer ring (161) and the supporting inner ring (162), the supporting outer ring (161) is fixedly arranged on the inner wall of the tank body (110), and the filter cartridge (120) is fixedly arranged on the supporting inner ring (162);
the filter cartridge (120) is connected with a guide pipe (150), and the feed inlet (111) is communicated with the inner cavity of the filter cartridge (120) through the guide pipe (150); the tank body (110) comprises a cylindrical upper tank body (115), and the second discharge port (114) is arranged along the horizontal tangential direction of the upper tank body (115);
the arrangement height of the cyclone blade (134) is the same as the arrangement height of the second discharge opening (114); the stirring mechanism (130) further comprises a guide blade (135) fixedly arranged on the stirring shaft (132), wherein the guide blade (135) is connected between the axial flow blade (133) and the rotational flow blade (134) and is used for guiding slurry at the axial flow blade (133) upwards to the position of the rotational flow blade (134); the length of the guide blade (135) is gradually increased from bottom to top; the axial flow blade (133), the guide blade (135) and the rotational flow blade (134) are connected into a whole from bottom to top.
2. The kitchen waste pulping and desanding device according to claim 1, wherein the stirring mechanism (130) further comprises a stirring blade (136) and a scraping plate (137) which are arranged on the stirring shaft (132), the stirring blade (136) is arranged below the filter cartridge (120), and the length of the stirring blade (136) is larger than the radius of the lower end of the filter cartridge (120); the tank body (110) further comprises a lower tank body (116) which is in an inverted circular truncated cone shape with a large upper part and a small lower part, the first discharge opening (113) is formed in the bottom of the lower tank body (116), and the scraping plate (137) is matched with the inner wall of the lower tank body (116).
3. The kitchen waste pulping and desanding device according to claim 1, wherein the screw conveyor (200) is obliquely arranged upwards along the direction away from the tank body (110), one end of the screw conveyor (200) away from the tank body (110) is connected with an extrusion dehydration mechanism (300), and the arrangement height of the extrusion dehydration mechanism (300) is higher than the upper edge of the tank body (110);
the extrusion dehydration mechanism (300) comprises an outer cylinder body (310), an extrusion filter cylinder (320) and a spiral extrusion plate (330), wherein the outer cylinder body (310) is parallel to the spiral conveyor (200) and coaxially sleeved outside the extrusion filter cylinder (320), the spiral extrusion plate (330) is arranged in the extrusion filter cylinder (320) and extends upwards along the axial spiral direction of the extrusion filter cylinder (320), an interlayer between the outer cylinder body (310) and the extrusion filter cylinder (320) is communicated with the tank body (110) through a liquid return pipe (400), and the upper end of the extrusion filter cylinder (320) is connected with a slag hole (340).
4. A kitchen waste size mixing and sand removing device according to claim 3, characterized in that the outer diameter of the screw extrusion plate (330) is gradually reduced in a direction away from the screw conveyor (200); the screw extrusion plate (330) and the screw conveyor (200) are connected to the same rotary motor (500).
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| CN202410014035.4A CN117504405B (en) | 2024-01-05 | 2024-01-05 | Kitchen garbage size mixing desanding device |
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| CN202410014035.4A CN117504405B (en) | 2024-01-05 | 2024-01-05 | Kitchen garbage size mixing desanding device |
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