CN110713273A

CN110713273A - Categorised recovery unit of trucd mixer washing water

Info

Publication number: CN110713273A
Application number: CN201910960821.2A
Authority: CN
Inventors: 胡国华
Original assignee: Pinghu Kaiyuan Concrete Co Ltd
Current assignee: Pinghu Kaiyuan Concrete Co Ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-01-21
Anticipated expiration: 2039-10-11
Also published as: CN110713273B

Abstract

The invention discloses a mixer truck cleaning water classification recycling device, which belongs to the field of concrete recycling and adopts the technical scheme that the mixer truck cleaning water classification recycling device comprises a receiving groove, a sand-stone separator, a sedimentation tank, a mixing tank and a quantitative mixing hopper, wherein the water outlet end of the receiving groove is connected with the water inlet of the sand-stone separator, the water outlet of the sand-stone separator is communicated with the sedimentation tank, a slurry pump is arranged at the bottom of the sedimentation tank, the water outlet of the slurry pump is communicated with the mixing tank, a sludge pump is arranged in the mixing tank, and the outlet of the sludge pump is communicated with the quantitative mixing hopper. The invention has the effect of providing the recycling rate of the cement slurry.

Description

Categorised recovery unit of trucd mixer washing water

Technical Field

The invention relates to the technical field of concrete recovery, in particular to a mixer truck cleaning water classification recovery device.

Background

A mixer truck, which is a special truck for transporting concrete for construction; due to its shape, it is also commonly referred to as a river snail vehicle, olive vehicle. These trucks are equipped with cylindrical mixing drums to carry the mixed concrete. The mixing drum can be always kept to rotate in the transportation process so as to ensure that the carried concrete can not be solidified. After the concrete is conveyed, water is usually used for flushing the interior of the mixing drum, so that the occupied space of the hardened residual concrete is prevented, and the volume of the mixing drum is reduced. The water after cleaning the inside of the mixing drum has more concrete residual force, and the direct discharge can cause pollution to the environment and waste of resources.

At present, the chinese patent publication No. CN201824475U discloses a concrete recycling device for a mixing truck, which comprises a mixing truck and a sedimentation tank, wherein a spiral aggregate recoverer is obliquely installed on the ground, a hopper is arranged at the lower end of the spiral aggregate recoverer, a water outlet is arranged below the hopper and is communicated with the sedimentation tank, the hopper corresponds to a discharge chute of the mixing truck, a hopper water pump, a cleaning water pump and a water supply water pump are arranged in the sedimentation tank, an outlet of a hopper pipeline connected with the hopper water pump is positioned above the hopper, an outlet of a cleaning pipeline connected with the cleaning water pump is positioned above a feed hopper of the mixing truck, the water supply water pump supplies water to a water-requiring place through a pipeline, a water replenishing pipeline replenishes water for the sedimentation tank, and a stirrer is arranged.

General mud is retrieved can be with the water and the cement mixture of mud still consequently, make new concrete, but in order to sink the sanitization with the stirring, can practical more water to lead to mud concentration low in the sedimentation tank, so the mud that is not utilized again is less, and then leads to the recovery reuse rate of cement mud low.

Disclosure of Invention

The invention aims to provide a mixer truck cleaning water classification recycling device, which utilizes a slurry pump to convey cement slurry with higher concentration at the bottom of a sedimentation tank into a mixing drum, so that the cement slurry with higher concentration is recycled, and the recycling rate of the cement slurry is improved.

In order to achieve the purpose, the invention provides the following technical scheme: the classified recycling device for the cleaning water of the mixer truck comprises a receiving trough, a sand-stone separator, a sedimentation tank, a mixing tank and a quantitative mixing hopper, wherein the water outlet end of the receiving trough is connected with the water inlet of the sand-stone separator, the water outlet of the sand-stone separator is communicated with the sedimentation tank, a slurry pump is arranged at the bottom of the sedimentation tank, the water outlet of the slurry pump is communicated with the mixing tank, a sludge pump is arranged in the mixing tank, and the outlet of the sludge pump is communicated with the quantitative mixing hopper.

By adopting the technical scheme, water for cleaning the mixer truck is discharged into the material receiving tank and then flows into the bottom pool, the driving motor drives the separating cylinder to rotate, aggregate and cement slurry in concrete are separated by the sand-stone separator, the cement slurry water flows to the other end of the bottom pool through the through hole and finally enters the settling pool to be preliminarily settled in the settling pool, the cement slurry with higher concentration is conveyed into the mixing bucket to be continuously mixed so as to prevent the cement slurry from being solidified, when the mixer truck is required to be used, the cement slurry is conveyed to the quantitative mixing bucket, and a certain amount of cement slurry is conveyed into the mixer truck by the quantitative mixing bucket so as to be reused; utilize the sedimentation tank to make cement slurry deposit the back, utilize the sediment stuff pump with the higher cement slurry of sedimentation tank bottom concentration carry to the churn in, make the higher cement slurry of concentration by recycle, improved the recycle of cement slurry.

The invention is further configured to: the conveying belt is arranged in an inclined mode, the inclined lower end of the conveying belt is located below the discharge end of the sand-stone separator, and the carrying platform is located below the inclined upper end of the conveying belt.

Through adopting above-mentioned technical scheme, sand and stone separator carries the aggregate of concrete to the conveyer belt on, and a large amount of water are remained to the aggregate this moment, and water can flow downwards along the conveyer belt of slope, and the aggregate falls to objective platform from the conveyer belt upper end on, can retrieve drier aggregate.

The invention is further configured to: the sedimentation tank comprises a mud pit, a secondary sedimentation tank and a collection tank, wherein the slurry pump is positioned at the bottom of the mud pit, the bottom tank is communicated with the mud pit, a water delivery device is arranged between the mud pit and the secondary sedimentation tank, the water delivery device comprises a water pump communicated with the secondary sedimentation tank and a water inlet pipe communicated with a water inlet of the water pump, the water inlet pipe is communicated with the mud pit, and an overflow groove communicated with the collection tank is communicated with one end, far away from the water delivery device, of the secondary sedimentation tank.

Through adopting above-mentioned technical scheme, cement mud carries out preliminary sedimentation in the mud pit, and the cement mud concentration of mud pit bottom is higher, and the water on upper strata is comparatively clean. Utilize the sediment stuff pump to carry the higher cement mud of mud bottom of the pool concentration to the agitator in, upper water passes through water delivery device and carries to secondary sedimentation tank in, advance to carry the water of clarification to collecting in the pond after the secondary sedimentation to obtain more clarified water, collect the cement mud that concentration is higher, get more thoroughly cement mud and separation of water.

The invention is further configured to: the agitator includes staving and agitating unit, the staving is the octagon in the cross section, agitating unit is including rotating (mixing) shaft, fixed connection in the (mixing) shaft of staving and fixed connection in drive (mixing) shaft pivoted servo motor, the export intercommunication of mud pump has the mud pipe of vertical setting, the mud pipe is located the contained angle department of octagon staving to its one end and the quantitative mixing fill intercommunication of keeping away from the dredge pump.

By adopting the technical scheme, the servo motor drives the stirring shaft to rotate, and the stirring shaft drives the stirring blades to rotate, so that the water mixed with the cement slurry is driven to rotate, and the cement is stirred to prevent the cement from solidifying in the water; the stirring blades can drive water to rotate, cement with large weight can be located at the edge of the barrel body under the action of centrifugal force, and when water flow passes through the included angle of the octagonal barrel, a vortex shape can be formed, so that the cement can be stirred, and the cement is prevented from being solidified; the cement is settled under the action of gravity, so that layering is formed, and the cement is concentrated on the middle lower layer of the barrel body.

The invention is further configured to: the staving includes eight star anise buckets and fixed connection in the upper cover structure of eight star anise buckets upper end, the upper cover structure includes both ends fixed connection in the first mounting bracket of eight star anise buckets's lateral wall, (mixing) shaft upper end is rotated with first mounting bracket and is connected.

Through adopting above-mentioned technical scheme, with agitating unit fixed connection in the upper cover structure, make the (mixing) shaft need not to pass eight corner ladle, so need not to consider eight corner ladle bottom's sealed problem, simple structure.

The invention is further configured to: stirring vane includes along the blade group of (mixing) shaft axial distribution, every the blade group all includes two fixed connection in the (mixing) shaft single blade of the lateral wall that keeps away from the back of the body, six single blade circumference fixed connection is in the (mixing) shaft.

Through adopting above-mentioned technical scheme, the single blade that utilizes six circumference settings stirs water, makes the water of each position in the staving all rotatory along with agitating unit, uses more fully must stir cement, prevents that cement from solidifying.

The invention is further configured to: the quantitative mixing bucket comprises a bucket frame and a bucket body which is vertically connected to the bucket frame in a sliding mode, the bucket body is provided with a liquid level sensor, a discharge pipe which is vertically arranged is fixedly connected to the lower end of the bucket body, the bucket body is hinged to a door plate for opening and closing the discharge pipe, and the bucket body is hinged to a hydraulic cylinder for driving the door plate to rotate to open and close.

Through adopting above-mentioned technical scheme, utilize level sensor to detect the volume of liquid in the ration mixing hopper, can carry quantitative cement mud to the trucd mixer in through the discharge tube of below.

The invention is further configured to: the bucket body circumference fixedly connected with four guide pin sleeves, the bucket rack fixedly connected with four guide rods, guide rod and guide pin sleeve sliding connection, bucket rack fixedly connected with test bucket body weight's weight testing arrangement.

By adopting the technical scheme, the liquid level sensor is used for detecting the liquid level in the bucket body, then the volume of liquid in the bucket body is calculated according to the shape and the volume of the bucket body, the weight of the liquid is detected by the weight testing device, then the weight is converted into the mass according to the weight, and finally the density of the liquid is calculated.

The invention is further configured to: the stirring barrel further comprises a support frame, the barrel body is placed on the support frame, and the sedimentation tank is located below the barrel body.

By adopting the technical scheme, the occupied area of the equipment is reduced, and the land utilization rate is improved.

In conclusion, the invention has the following beneficial effects:

firstly, after the cement slurry is precipitated by using the sedimentation tank, the cement slurry with higher concentration at the bottom of the sedimentation tank is conveyed into the mixing drum by using the slurry pump, so that the cement slurry with higher concentration is recycled, and the recycling rate of the cement slurry is improved;

and the sedimentation tank comprises a mud tank, a secondary sedimentation tank and a collection tank, the cement slurry is preliminarily precipitated in the mud tank, the concentration of the cement slurry at the bottom of the mud tank is higher, and the water on the upper layer is cleaner. The method comprises the following steps of conveying cement slurry with higher concentration at the bottom of a slurry tank into a stirring barrel by using a slurry pump, conveying upper-layer water into a secondary sedimentation tank through a water conveying device, conveying clarified water into a collection tank after secondary sedimentation, so as to obtain more clarified water, collecting the cement slurry with higher concentration, and separating the cement slurry from water more thoroughly;

thirdly, the stirring blades can drive water to rotate, cement with large weight can be located at the edge of the barrel body under the action of centrifugal force, and vortex-shaped water flow can form when passing through the included angle of the octagonal barrel, so that the cement can be stirred, and the cement is prevented from being solidified; the cement is settled under the action of gravity, so that layering is formed, and the cement is concentrated on the middle lower layer of the barrel body.

Drawings

FIG. 1 is a wire frame diagram of example 1;

fig. 2 is a schematic structural diagram of a material receiving tank in the embodiment 1;

FIG. 3 is a schematic structural view of the sand separator of the present embodiment;

FIG. 4 is a schematic structural diagram of a sedimentation tank according to the present embodiment;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a perspective view showing the agitating barrel according to embodiment 1;

FIG. 7 is a sectional view showing a stirring apparatus of example 1;

FIG. 8 is a schematic view showing the structure of an overflow hole in example 1;

FIG. 9 is a schematic view showing the structure of a water discharge hole in embodiment 1;

FIG. 10 is a sectional view showing a water discharge hole in accordance with embodiment 1;

FIG. 11 is a perspective view of the quantitative mixing hopper of example 1;

FIG. 12 is a sectional view of the bucket body of the embodiment 1;

FIG. 13 is a sectional view of the weight-measuring device of example 1.

Reference numerals: 101. a material receiving groove; 102. a sand-stone separator; 103. a conveyor belt; 104. a sedimentation tank; 105. a bottom tank; 106. a separation cylinder; 107. a drive motor; 108. a support disc; 109. filtering rings; 110. a side ring plate; 111. a through hole; 112. a partition plate; 113. a second flush pipe; 114. a first flush pipe; 115. a carrier platform; 116. an auxiliary guide groove; 117. a mud pit; 118. a secondary sedimentation tank; 119. a collection tank; 120. a water delivery device; 121. an overflow trough; 122. a water pump; 123. a water inlet pipe; 124. a slurry pump; 125. a distributing hopper; 126. a guide bar; 127. a foam block;

200. a stirring barrel; 201. a barrel body; 202. a stirring device; 203. an octagonal barrel; 204. an upper cover structure; 205. a mud pipe; 206. a water replenishing pipe; 207. an overflow aperture; 208. an overflow pipe; 209. a receiving hopper; 210. a sludge pump; 211. a sludge discharge pipe; 212. an adjustment device; 213. a baffle plate; 214. adjusting a rod; 215. a ratchet; 216. a limiting rod; 217. a water discharge hole; 218. a bottom door; 219. angle steel; 220. a slot; 221. a hole of abdication; 222. a water stop; 223. a wrench; 224. a kidney-shaped hole; 225. hinging a shaft; 226. a first mounting bracket; 227. a second mounting bracket; 228. a rolling bearing; 229. a stirring shaft; 230. a stirring blade; 231. a servo motor; 232. a blade group; 233. a single blade; 234. a planetary reducer; 235. a support frame;

300. a quantitative mixing hopper; 301. a barrel frame; 302. a bucket body; 303. a discharge pipe; 304. a door panel; 305. a weight testing device; 306. a liquid level sensor; 307. a guide sleeve; 308. a guide bar; 309. a hydraulic cylinder; 310. a rain shelter; 311. shed legs; 312. a shed roof; 313. a piston rod; 314. a piston cylinder; 315. a piston; 316. sealing the cavity; 318. a hydraulic pressure sensor; 319. a third flush line.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a mixer truck cleaning water classification and recovery device is shown in figure 1 and comprises a material receiving groove 101, a sand-stone separator 102, a conveyor belt 103, a sedimentation tank 104, a mixing barrel 200 and a quantitative mixing bucket 300. Water for cleaning the mixer truck is discharged into a receiving trough 101, the water flows into a sand-stone separator 102 from the receiving trough 101, and aggregate and cement slurry are separated by the sand-stone separator 102. The aggregate is conveyed onto a conveyor belt 103 and the cement slurry is conveyed into a settling tank 104. After the sedimentation, the cement slurry with higher concentration at the bottom layer is conveyed into the stirring barrel 200, the stirring barrel 200 is used for continuously stirring the cement slurry to prevent the cement from being condensed, the cement slurry is required to be used, the cement slurry at the bottom of the stirring barrel 200 is conveyed into the quantitative mixing hopper 300, the density of the cement slurry is calculated by the quantitative mixing hopper 300 and then conveyed into the stirring truck, and finally, new cement is added according to the density of the cement slurry calculated by the quantitative mixing hopper 300 to prepare the cement which meets the standard.

As shown in fig. 2, the receiving trough 101 is a horizontally disposed rectangular parallelepiped shape, the upper end thereof is opened, the bottom thereof is fixed in a downwardly concave arc shape, and the bottom thereof is communicated with the feed end of the sand-stone separator 102. The receiving trough 101 is fixedly connected with a first flushing pipe 114 communicated with the receiving trough 101, the first flushing pipe 114 is communicated with a natural water net to flush the receiving trough 101, and cement slurry and aggregate are prevented from remaining in the receiving trough 101.

As shown in FIG. 3, the sand separator 102 includes a bottom tank 105, a separation cylinder 106, and a drive motor 107. The bottom pool 105 is arranged on the bottom surface and is rectangular, one end of the bottom pool 105 is communicated with the material receiving groove 101, and the other end of the bottom pool is communicated with the sedimentation tank 104. The separating cylinder 106 is rotatably connected to the bottom tank 105, the rotating axis of the separating cylinder is horizontally arranged and is vertical to the length direction of the bottom tank 105, and two axial ends of the separating cylinder 106 are attached to the inner wall of the bottom tank 105. The driving motor 107 is fixedly connected with the bottom surface and drives the separating cylinder 106 to rotate through belt transmission. The separating cylinder 106 comprises a supporting disc 108 rotatably connected to the bottom tank 105, filter rings 109 coaxially and fixedly connected to both sides of the supporting disc 108, and a side ring plate 110 coaxially and fixedly connected to the filter rings 109. The diameter of the supporting disc 108 is the same as the outer diameter of the side ring plate 110, a gap is reserved between the lower ends of the supporting disc 108 and the bottom of the bottom pool 105, the gap is smaller than the diameter of aggregate, and a partition plate 112 is fixedly connected between the side ring plate 110 and the supporting disc 108 in the circumferential direction. One end of the partition plate 112 is abutted against the filtering ring 109, and the other end is flush with the outer diameter of the support plate 108, and the plane of the partition plate 112 is opposite and parallel to the rotation axis of the separating cylinder 106. Two adjacent baffles 112, side ring plates 110 and support pans 108 comprise component hoppers 125. Water for cleaning the mixer truck flows into the bottom pool 105 from the material receiving groove 101, the driving motor 107 drives the separating cylinder 106 to rotate, aggregate and cement slurry in concrete are separated by the separating cylinder 106, the cement slurry water flows to the other end of the bottom pool 105 through the through hole 111, and the aggregate is poured onto the conveyor belt 103 by the material distributing hopper 125. When sand and stone are separated, the separating cylinder 106 rotates ceaselessly, the opening of the distributing hopper 125 faces downwards after the aggregate is separated, and the aggregate and cement slurry pass through the distributing hopper 125, so that the aggregate and the cement slurry are prevented from being accumulated at the bottom of the distributing hopper 125, and the possibility of blockage can be reduced. In order to further reduce the possibility of blockage, the side walls of the bottom tank 105 at both sides in the width direction are fixedly connected with second flushing pipes 113, the water outlet end is aligned with the side where the conveyor belt 103 is located, and the filtering ring 109 is flushed by the second flushing pipes 113.

As shown in FIG. 4, the belt 103 is positioned on the side of the settling tank 104 and is disposed obliquely with its lower end being positioned at the discharge end of the sand separator 102. Sedimentation tank 104 one side fixedly connected with cargo platform 115, cargo platform 115 is located the below of conveyer belt 103 slope upper end, and cargo platform 115 is the slope setting, and cargo platform 115's slope lower extreme is close to sedimentation tank 104 and with sedimentation tank 104 up end parallel and level. The aggregate of the concrete is conveyed to the conveyor belt 103 by the sand-stone separator 102, a large amount of water is remained in the aggregate at the moment, the water flows downwards along the inclined conveyor belt 103, the aggregate falls onto the loading platform 115 from the upper end of the conveyor belt 103, and the drier aggregate can be recovered. An auxiliary guide groove 116 is formed in the bottom surface of the conveyor belt 103 below the inclined portion, and the auxiliary guide groove 116 is communicated with the sedimentation tank 104. Water flowing down from the conveying belt 103 enters the sedimentation tank 104 along the auxiliary guide groove 116 for sedimentation, and resource recycling is further improved.

As shown in fig. 4, the settling tank 104 includes a slurry tank 117, a secondary settling tank 118, and a collecting tank 119. Wherein the mud pit 117 is close to the loading platform 115, and the auxiliary guide groove 116 and the bottom pit 105 are both communicated with the mud pit 117. The cement slurry separated by the sand separator 102 and the water remaining on the aggregates flow into the slurry tank 117. The cement slurry is initially deposited in the slurry tank 117 to create a layer with relatively clean water in the upper layer and a higher concentration of cement slurry in the lower layer. A water conveying device 120 (see fig. 5) is arranged between the mud pit 117 and the secondary sedimentation tank 118, and water on the upper layer of the mud pit 117 is conveyed into the secondary sedimentation tank 118 by the water conveying device 120. The end of the secondary sedimentation tank 118 away from the water delivery device 120 is communicated with an overflow tank 121 communicated with the collection tank 119. After the secondary sedimentation in the secondary sedimentation tank 118, the clarified water flows into the collection tank 119 through the overflow tank 121, so as to obtain more clarified water. The mud pump 124 is arranged at the bottom of the mud pit 117, the outlet of the mud pump 124 is communicated with the stirring barrel 200, cement mud with higher concentration is conveyed into the stirring barrel 200, and the stirring barrel 200 is used for continuously stirring to prevent the cement mud from solidifying.

As shown in fig. 5, the water delivery device 120 includes a water pump 122 and a water inlet pipe 123. The water outlet of the water pump 122 is communicated with the secondary sedimentation tank 118. One end of the water inlet pipe 123 is communicated with the water inlet pipe 123 of the water pump 122, and the other end extends into the mud pit 117. Two vertical guide rods 126 are fixedly connected to the side wall of the mud pit 117, and a foam block 127 is fixedly connected to one end, far away from the water pump 122, of the water inlet pipe 123. Foam block 127 is slidably attached to guide rod 126, and water inlet pipe 123 extends vertically through foam block 127. The buoyancy generated by foam block 127 is greater than its own weight with inlet pipe 123. Under the action of the buoyancy of the foam block 127, one end of the water inlet pipe 123 far away from the water pump 122 is always positioned near the water surface, so that the water conveying structure conveys relatively clean water on the upper layer of the mud pit 117 into the secondary sedimentation tank 104.

As shown in fig. 6, the mixing tank 200 includes a tank body 201, a mixing device 202, and a support 235. The barrel body 201 is placed on the supporting frame 235, the secondary sedimentation tank 118 and the collection tank 119 are positioned below the barrel body 201, and the barrel body 201 comprises an octagonal barrel 203 with a regular octagonal cross section and an upper cover structure 204 fixedly connected to the upper end of the octagonal barrel 203. The stirring device 202 is installed on the stirring device 202, and the lower end of the stirring device extends into the octagonal barrel 203 and is used for stirring the liquid in the octagonal barrel 203.

As shown in fig. 6 and 7, a mud pipe 205 and a water replenishing pipe 206 are fixedly connected to the upper end of the side wall of the octagonal barrel 203. The water mixed with the cement slurry is conveyed into the octagonal barrel 203 through the slurry pipe 205, and the water is supplemented into the octagonal barrel 203 through the water supplementing pipe 206. Overflow hole 207 (as shown in fig. 3) has been seted up to eight corner ladle 203 upper end lateral wall, and eight corner ladle 203 outer wall fixedly connected with is vertical overflow pipe 208 (as shown in fig. 3), and overflow pipe 208 upper end intercommunication has the square hopper 209 that connects (as shown in fig. 3), connects hopper 209 lateral wall and the laminating of eight corner ladle 203 outer wall and is located the below of overflow hole 207, connects hopper 209 lower extreme and overflow pipe 208 intercommunication. When the water level is too high, the clear water in the upper layer flows out through the overflow hole 207 and enters the overflow pipe 208 to be discharged, and the overflow hole 207 is used for preventing the water level from being too high. The inside bottom of eight corner pail 203 is provided with sludge pump 210, and sludge pump 210's export intercommunication has the mud pipe 211 of vertical setting, and mud pipe 211 is located the contained angle department of octagon staving 201, and mud pipe 211 leads to out eight corner pail 203 from eight corner pail 203 upper end.

As shown in fig. 8, the octagonal barrel 203 is provided with an adjusting device 212 for opening and closing the overflow hole 207, and the adjusting device 212 comprises a baffle 213 for opening and closing the overflow hole 207 and an adjusting rod 214 for adjusting the height of the baffle 213. Baffle 213 vertical sliding connection leans on interior lateral wall in eight angle buckets 203, and baffle 213 upper end is the cockscomb structure, baffle 213 and the inseparable laminating of eight angle buckets 203 inner wall under hydraulic effect. When the water level is too high, the clear water in the upper layer flows out through the overflow hole 207 and enters the overflow pipe 208 to be discharged, and the overflow hole 207 is used for preventing the water level from being too high. Two rows of vertically arranged ratchets 215 are fixedly connected to the side wall of the baffle plate 213 facing the outside of the octagonal barrel 203, and the two rows of ratchets 215 face in the opposite direction. The two adjusting rods 214 are hinged to the side wall of the octagonal barrel 203, the hinged points of the two adjusting rods 214 are located in the middle of the length direction of the adjusting rods 214, and the two adjusting rods 214 are located on two sides of the horizontal direction of the overflow hole 207 respectively. Two fixedly connected with gag lever posts 216 that are used for restricting adjusting pole 214 pivoted on the eight horn bucket 203, gag lever post 216 is located the both sides of overflow hole 207 horizontal direction respectively, and two gag lever posts 216 contradict respectively in the upper surface of adjusting pole 214 and keeping away from the one end of baffle 213, utilize adjusting pole 214 one end and ratchet 215 to contradict, and its other end contradicts and gag lever post 216 to prevent baffle 213 lapse, can adjust the height of baffle 213, thereby control the height of the biggest water level.

As shown in fig. 9 and 10, a water discharge hole 217 is formed at the bottom of the octagonal barrel 203 near the side wall, and a bottom door 218 for opening and closing the water discharge hole 217 is slidably connected to the bottom of the octagonal barrel 203. Octagonal barrel 203 bottom outer wall fixedly connected with angle steel 219, angle steel 219 have four and end to end is the frame form, forms slot 220 between angle steel 219 and the octagonal barrel 203 outer wall, keeps away from one end angle steel 219 at staving 201 center and offers the hole of stepping down 221 that supplies end door 218 to pass, and end door 218 both sides sliding connection is in slot 220. A water stop 222 is fixedly connected in the slot 220, four ends of the water stop 222 are connected end to form a frame, the water discharge hole 217 is arranged in the frame enclosed by the water stop 222, and the bottom door 218 abuts against the surface of the water stop 222, which is far away from the octagonal barrel 203. When the bottom door 218 is positioned within the slot 220, it compresses the water stop 222, thereby providing a seal. When the barrel body 201 needs to be cleaned, the bottom door 218 can be slid to enable the bottom door not to close the water discharging hole 217 any more, so that water and cement slurry are discharged from the water discharging hole 217, and the barrel body 201 is convenient to clean.

As shown in FIG. 10, in order to facilitate the sliding of the bottom door 218, the barrel 201 is hinged with a wrench 223 driving the bottom door 218 to slide. The lower position of the wrench 223 is hinged to the octagonal barrel 203, a waist-shaped hole 224 is formed in the lower end of the wrench along the length direction of the octagonal barrel, and a hinged shaft 225 penetrating through the waist-shaped hole 224 is fixedly connected to one end of the bottom door 218 far away from the center of the octagonal barrel 203. When the bottom door 218 needs to be opened, the wrench 223 is rotated to pull the bottom door 218 to slide, so that the bottom door 218 can be slid more conveniently.

As shown in fig. 6, the upper cover structure 204 includes a first mounting frame 226 and a second mounting frame 227 both ends of which are fixedly connected to the side wall of the octagonal barrel 203. The length direction of the first mounting frame 226 is perpendicular to the length direction of the second mounting frame 227, and the second mounting frame 227 is located below the first mounting frame 226. The first and second mounting brackets 226, 227 each mount a rolling bearing 228, the stirring device 202 is mounted on the first mounting bracket 226, the lower end of the stirring device passes through the two rolling bearings 228, and the first and second mounting brackets 226, 227 provide four-directional support in the horizontal plane for the stirring device 202, thereby further increasing the stability of the stirring device 202.

As shown in fig. 7, the stirring device 202 includes a stirring shaft 229, a stirring blade 230, and a servo motor 231. The upper end of the stirring shaft 229 is coaxially and fixedly connected with the inner rings of the two rolling bearings 228, and the lower end thereof extends into the octagonal barrel 203. Stirring vanes 230 include three vane sets 232 axially spaced along stirring shaft 229, each vane set 232 including two single vanes 233 fixedly attached to opposite side walls of stirring shaft 229, and six single vanes 233 circumferentially fixedly attached to stirring shaft 229. The six single blades 233 are provided with oblique cross sections in the width direction, and the lower surfaces of the single blades 233 face the rotation direction thereof. The single blade 233 that utilizes six circumference settings stirs water, makes the water of each position in the staving 201 all rotatory along with agitating unit 202, uses more fully must stir cement, prevents that cement from solidifying. A planetary reducer 234 is fixedly connected to the first mounting frame 226, an output shaft of the planetary reducer 234 is coaxially and fixedly connected to the stirring shaft 229, and an input shaft thereof is coaxially and fixedly connected to a main shaft of the servo motor 231. The servo motor 231 is fixedly connected to the upper end of the planetary reducer 234.

As shown in fig. 11, the quantitative mixing bucket includes a bucket rack 301 and a bucket body 302, and the bucket body 302 is slidably connected to the bucket rack 301. Hopper body 302 bottom fixedly connected with discharge tube 303 of vertical setting, hopper body 302 articulates there is the door plant 304 of opening and close discharge tube 303. The bucket rack 301 is fixedly connected with a weight testing device 305 for testing the weight of the bucket body 302, the bucket body 302 is provided with a liquid level sensor 306 (see fig. 12) for detecting the height of the liquid level in the bucket body 302, and the liquid level sensor is a drop-in type static pressure liquid level transmitter.

As shown in fig. 11, a known volume of liquid is charged into the bucket body 302 and the level detected by the corresponding level sensor is recorded. Different volumes of liquid are used for multiple times, so that different liquid levels can correspond to different volumes, and the volume of the liquid in the bucket body 302 can be detected through the liquid level sensor. The weight measuring device 305 is set to zero so that the weight measured by the weight measuring device 305 becomes zero when the liquid is not present in the bucket body 302. The method comprises the steps of conveying cement slurry mixed with recycled mixer truck cleaning water into a hopper, detecting the volume of the cement slurry by using a liquid level sensor 306, detecting the weight of the cement slurry by using a weight testing device 305, converting the weight into mass, and finally calculating the density of the cement slurry. The door plate 304 is rotated to open the discharge pipe 303 to discharge the cement slurry into the mixer truck, and then a proper amount of cement powder is added into the mixer truck and is fully stirred to prepare cement.

As shown in fig. 11 and 12, the upper end of the bucket body 302 is vertically arranged in a cylindrical shape, the lower end of the bucket body is funnel-shaped, four guide sleeves 307 are fixedly connected to the side wall of the bucket body 302 in the circumferential direction, four guide rods 308 are fixedly connected to the bucket rack 301, the guide rods 308 are slidably connected to the guide sleeves 307, and the guide rods 308 and the guide sleeves 307 are used for guiding the sliding direction of the bucket body 302, so that the bucket body 302 is stably slidably connected to the bucket rack 301. The weight measuring device 305 is disposed between the upper end of the guide rod 308 and the guide sleeve 307. The lower end of the discharge pipe 303 is arc-shaped by taking the rotation axis of the door panel 304 as the center of a circle, and the door panel 304 is also arc-shaped and is attached to the lower end of the discharge pipe 303, so that the door panel 304 and the lower end of the discharge pipe 303 are attached more closely, and the lower end of the discharge pipe 303 is sealed. The side wall of the bucket body 302 is hinged with an opening and closing hydraulic cylinder 309 for driving the door plate 304 to rotate, and the other end of the opening and closing hydraulic cylinder 309 is hinged with the door plate 304.

As shown in fig. 11 and 12, when the rainwater is large, the rainwater affects the density of cement slurry water in the bucket body 302. The rain shelter 310 is fixedly connected to the barrel frame 301, the rain shelter 310 includes four shelter legs 311 and a conical shelter ceiling 312, the shelter legs 311 are circumferentially and fixedly connected to the side wall of the barrel frame 301, the upper ends of the shelter legs are fixedly connected to the shelter ceiling 312, the shelter ceiling 312 is located at the upper end of the bucket body 302, and the shelter legs and the shelter ceiling are coaxial. The rain shelter 310 is used for reducing rainwater entering the hopper body 302 and preventing the influence of the rainwater on the concentration of the liquid moving in the hopper body 302. The shed roof 312 is fixedly connected with a plurality of third flushing pipes 319, the lower ends of the third flushing pipes 319 are aligned with the bucket body, the other ends of the third flushing pipes 319 are communicated with a tap water net, and the third flushing pipes 319 can be used for cleaning the bucket body after unloading.

As shown in fig. 13, the weight measuring device 305 includes a piston rod 313 and a piston cylinder 314. The upper end of the piston cylinder 314 is fixedly connected in the guide sleeve 307, and the lower end of the piston rod 313 is coaxially and fixedly connected with the upper end surface of the guide rod 308. A piston 315 is coaxially and slidably connected in the piston cylinder 314, and the piston 315 is coaxially and fixedly connected with the upper end of the piston rod 313. The side wall of the piston 315 is tightly attached to the inner wall of the piston 315, a closed cavity 316 is formed between the piston 315 and the piston cylinder 314, hydraulic oil is filled in the closed cavity 316, and a hydraulic sensor 318 for detecting the pressure intensity of the hydraulic oil is installed at one end, far away from the piston rod 313, of the piston 315. The pressure of hydraulic oil is detected by using a hydraulic cylinder 309 sensor, the pressure is matched with the area of the end face of a piston 315, the pressure borne by a single weight testing device 305 is calculated, the value obtained by multiplying the pressure by four is the weight of the bucket body 302 and the liquid in the bucket body 302, the known weight of the bucket body 302 is removed, and the weight of the liquid in the bucket body 302 is calculated. To further facilitate weight sensing, the area of the end faces of the pistons 315 is set to 0.25 square meters, so that the area of the end faces of the four pistons 315 is 1 square meter, so that when calculating the weight of the fluid, the weight of the bucket body 302 and the fluid therein is determined by directly multiplying the value displayed by the sensor of the hydraulic cylinder 309 by 1.

The specific working process of the specific embodiment is as follows: water for cleaning the mixer truck is discharged into the receiving tank 101, and the first flushing pipe 114 is used for flushing the receiving tank 101, so that water obtained in the receiving tank 101 flows into the sand-stone separator 102. Aggregate and cement slurry are separated by the sand-stone separator 102, the driving motor 107 drives the separating cylinder 106 to rotate, cement slurry water flows to the other end of the bottom pool 105 through the through hole 111, the aggregate is dumped onto the conveyor belt 103 by the distributing hopper, and the aggregate is conveyed onto the carrying platform 115 by the conveyor belt 103. The cement slurry is delivered to the settling pond 104. The cement slurry separated by the sand separator 102 and the water remaining on the aggregates flow into the slurry tank 117. The cement slurry is initially deposited in the slurry tank 117 to create a layer with relatively clean water in the upper layer and a higher concentration of cement slurry in the lower layer. The water transfer device 120 transfers the water in the upper layer of the mud pit 117 to the secondary sedimentation tank 118. The end of the secondary sedimentation tank 118 away from the water delivery device 120 is communicated with an overflow tank 121 communicated with the collection tank 119. After the secondary sedimentation in the secondary sedimentation tank 118, the clarified water is transported through the overflow tank 121 and flows into the collection tank 119, so that the clarified water is obtained. The mud pump 124 is arranged at the bottom of the mud pit 117, the outlet of the mud pump 124 is communicated with the stirring barrel 200, cement mud with higher concentration is conveyed into the stirring barrel 200, and the stirring barrel 200 is used for continuously stirring to prevent the cement mud from solidifying.

The water mixed with the cement slurry is conveyed into the octagonal barrel 203 through the slurry pipe 205, the stirring device 202 stirs the sewage, the stirring device 202 drives the water to rotate, the cement with large weight can be positioned at the edge of the barrel body 201 under the action of centrifugal force, and when the water flow passes through the included angle of the octagonal barrel 203, a vortex shape can be formed, so that the cement can be stirred, and the cement is prevented from being solidified; the cement settles under the action of gravity to form a layer, and the cement is concentrated on the middle and lower layers of the barrel body 201. Then, the cement slurry is transferred to a sludge transfer and discharge pipe 211 by a sludge pump 210 and discharged from the discharge pipe. The rotation speed of the stirring device 202 can be controlled by the servo motor 231, and the concentration of the sludge can be controlled.

The method comprises the steps of conveying cement slurry mixed with recycled mixer truck cleaning water into a hopper, detecting the volume of the cement slurry by using a liquid level sensor 306, detecting the weight of the cement slurry by using a weight testing device 305, converting the weight into mass, and finally calculating the density of the cement slurry. The door plate 304 is rotated to open the discharge pipe 303 to discharge the cement slurry into the mixer truck, and then a proper amount of cement powder is added into the mixer truck and is fully stirred to prepare cement.

Example 2: the mixer truck washing water classifying and recycling device is different from the mixer truck washing water classifying and recycling device in embodiment 1 in that: the single blades 233 at both ends of the stirring shaft 229 are inclined in cross section in the width direction, the single blades 233 at the center of the stirring shaft 229 are vertical in cross section in the width direction, the lower surface of the single blade 233 at the uppermost position faces the rotation direction thereof, and the upper surface of the single blade 233 at the lowermost position faces the rotation direction thereof. The lower single blade 233 makes the water at the bottom of the barrel 201 flow upwards, the upper single blade makes the water at the upper part of the barrel 201 flow downwards, the water flow between the uppermost single blade 233 and the lowermost single blade 233 generates convection, the stirring effect is further increased, and the convection effect of the water above the uppermost single blade is weaker, so the cement is still clarified, and the cement is still concentrated at the middle-lower position of the barrel 201.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a categorised recovery unit of trucd mixer washing water which characterized in that: the device comprises a material receiving groove (101), a sand-stone separator (102), a sedimentation tank (104), a stirring barrel (200) and a quantitative mixing hopper (300), wherein the water outlet end of the material receiving groove (101) is connected with the water inlet of the sand-stone separator (102) and communicated with the sedimentation tank (104), the water outlet of the sand-stone separator (102) is communicated with the sedimentation tank (104), a slurry pump (124) is arranged at the bottom of the sedimentation tank (104), the water outlet of the slurry pump (124) is communicated with the stirring barrel (200), a sludge pump (210) is arranged in the stirring barrel (200), and the outlet of the sludge pump (210) is communicated with the quantitative mixing hopper (300).

2. The mixer truck washing water classification and recycling device according to claim 1, characterized in that: the sand-gravel separator also comprises a conveyor belt (103) and a loading platform (115), wherein the conveyor belt (103) is obliquely arranged, the oblique lower end of the conveyor belt is positioned below the discharge end of the sand-gravel separator (102), and the loading platform (115) is positioned below the oblique upper end of the conveyor belt (103).

3. The mixer truck washing water classification and recycling device according to claim 1, characterized in that: the sedimentation tank (104) comprises a slurry tank (117), a secondary sedimentation tank (118) and a collection tank (119), wherein a slurry pump (124) is positioned at the bottom of the slurry tank (117), a water outlet of the sand-stone separator (102) is communicated with the slurry tank (117), a water conveying device (120) is arranged between the slurry tank (117) and the secondary sedimentation tank (118), the water conveying device (120) comprises a water pump (122) and a water inlet pipe (123), the water outlet of the water pump is communicated with the secondary sedimentation tank (118), the water inlet pipe (123) is communicated with the water inlet of the water pump (122), the water inlet pipe (123) is communicated with the slurry tank (117), and one end, far away from the water conveying device (120), of the secondary sedimentation tank (118) is communicated with an overflow groove (121) communicated with the collection tank (119).

4. The mixer truck washing water classification and recycling device according to claim 1, characterized in that: the agitator (200) includes staving (201) and agitating unit (202), the staving (201) is transversal personally submits the octagon, agitating unit (202) are including rotating (mixing) shaft (229), fixed connection in stirring vane (230) of (mixing) shaft (229) and fixed connection in drive (mixing) shaft (229) pivoted servo motor (231) of connecting in staving (201), the export intercommunication of sludge pump (210) has mud pipe (211) of vertical setting, mud pipe (211) are located the contained angle department of octagon staving (201) to its one end and quantitative mixing bucket (300) intercommunication of keeping away from the dredge pump.

5. The mixer truck washing water classification and recycling device according to claim 4, wherein: staving (201) include octagonal barrel (203) and upper cover structure (204) of fixed connection in octagonal barrel (203) upper end, upper cover structure (204) include both ends fixed connection in first mounting bracket (226) of the lateral wall of octagonal barrel (203), (mixing) shaft (229) upper end is rotated with first mounting bracket (226) and is connected.

6. The mixer truck washing water classification and recycling device according to claim 4, wherein: the stirring blades (230) comprise blade groups (232) axially distributed along the stirring shaft (229), each blade group (232) comprises two single blades (233) fixedly connected to the opposite side walls of the stirring shaft (229), and six single blades (233) are circumferentially and fixedly connected to the stirring shaft (229).

7. The mixer truck washing water classification and recycling device according to claim 1, characterized in that: the quantitative mixing hopper (300) comprises a barrel frame (301) and a hopper body (302) which is vertically connected to the barrel frame in a sliding mode, wherein the hopper body (302) is provided with a liquid level sensor (306), the lower end of the hopper body (302) is fixedly connected with a discharge pipe (303) which is vertically arranged, the hopper body (302) is hinged with a door plate (304) for opening and closing the discharge pipe (303), and the hopper body (302) is hinged with a hydraulic cylinder (309) for driving the door plate (304) to rotate to open and close.

8. The mixer truck washing water classification and recycling device according to claim 7, wherein: the bucket body (302) is circumferentially and fixedly connected with four guide sleeves (307), the bucket rack (301) is fixedly connected with four guide rods (308), the guide rods (308) are in sliding connection with the guide sleeves (307), and the bucket rack (301) is fixedly connected with a weight testing device (305) for testing the weight of the bucket body (302).

9. The mixer truck washing water classification and recycling device according to claim 1, characterized in that: the stirring barrel (200) further comprises a supporting frame (235), the barrel body (201) is placed on the supporting frame (235), and the sedimentation tank (104) is located below the barrel body (201).