CN215288240U

CN215288240U - Gravel recycling and screening system for concrete mixing plant

Info

Publication number: CN215288240U
Application number: CN202121680138.2U
Authority: CN
Inventors: 余登平
Original assignee: Hangzhou Zhouqiao Building Materials Co ltd
Current assignee: Hangzhou Zhouqiao Building Materials Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-12-24
Anticipated expiration: 2031-07-22

Abstract

The application relates to a screening system for recycled sand and stone of a concrete mixing plant, which comprises a water pipeline, a turbulence cylinder and a screening and conveying device which are sequentially arranged along the conveying direction of waste water; the water pipe is connected in the turbulence cylinder, and the bottom of the turbulence cylinder is provided with a liquid outlet; screening conveyor is located the below of a vortex section of thick bamboo, and screening conveyor's direction of delivery slope sets up, and screening conveyor's below is equipped with the collection tank that is used for collecting waste water and is used for collecting the sand and stone's sand collection box respectively, and the collection tank is located screening conveyor's low side, and the sand collection box is located screening conveyor's high side. The utility model provides a grit screening system is retrieved to concrete mixing plant sieves the processing through screening conveyor convenience, grit in to waste water fast, and the convenience is retrieved and is recycled the grit.

Description

Gravel recycling and screening system for concrete mixing plant

Technical Field

The application relates to the technical field of concrete production, in particular to a gravel recycling screening system of a concrete mixing plant.

Background

The concrete mixing plant is a combined device for intensively mixing concrete, and is also called a concrete precast yard. The concrete mixing plant has higher mechanization and automation degree and good production efficiency, has the advantages of ensuring the quality of concrete and saving cement during production, and is commonly used in large-scale concrete engineering.

A concrete mixing plant can generate a large amount of waste water during concrete production, and the waste water needs to be discharged and treated; however, the sand contained in the wastewater is a recyclable material, and if the wastewater is directly discharged, serious resource waste exists.

SUMMERY OF THE UTILITY MODEL

In order to retrieve and recycle the grit in the waste water, this application provides a concrete mixing plant retrieves grit screening system.

The application provides a pair of grit screening system is retrieved to concrete mixing plant adopts following technical scheme:

a screening system for recycled sand and stone of a concrete mixing plant comprises a water conveying pipeline, a turbulence cylinder and a screening conveying device which are sequentially arranged along the conveying direction of waste water; the water conveying pipeline is connected into the turbulence cylinder, and the bottom of the turbulence cylinder is provided with a liquid outlet; the screening conveying device is located below the turbulence barrel, the conveying direction of the screening conveying device is inclined upwards, a water collecting tank used for collecting waste water and a sand collecting box used for collecting sand are respectively arranged below the screening conveying device, the water collecting tank is located at the low side of the screening conveying device, and the sand collecting box is located at the high side of the screening conveying device.

By adopting the technical scheme, the waste water generated by the concrete mixing plant flows downwards in the turbulence cylinder and generates turbulence after being conveyed to the turbulence cylinder through the water conveying pipeline, so that the separation degree of sand and stone contained in the waste water and the waste water is improved; the waste water falls onto the screening and conveying device through the liquid outlet, wherein the sand and stone in the waste water can be conveyed upwards along with the screening and conveying device and finally fall into the sand collecting box, so that the sand and stone can be conveniently recycled and reused, and the phenomenon of resource waste is reduced; the waste water with fluidity can flow downwards along the screening conveying device under the action of gravity and finally flows into the water collecting tank, so that the waste water is treated in a centralized way.

Optionally, screening conveyor includes the conveyer belt, the surface of conveyer belt is equipped with a plurality of soil blocking strips that are used for intercepting the grit, each soil blocking strip all is equipped with a plurality of water guide holes.

By adopting the technical scheme, after the wastewater falls into the screening and conveying device, the wastewater gradually flows to the lowest side of the conveyor belt through the water guide holes and finally flows into the water collecting tank; the sand and stone in the waste water can be intercepted to the soil blocking strip, so that the sand and stone in the waste water moves to the highest side of the conveyor belt under the driving of the conveyor belt and finally flows into the sand collecting box.

Optionally, the both sides of retaining the soil strip are equipped with water blocking strip respectively, two water blocking strip is fixed in the both sides of conveyer belt width direction respectively, each water blocking strip all sets up and forms the rivers passageway that supplies waste water to flow with retaining the soil strip interval.

By adopting the technical scheme, the water blocking strips fixed on the two sides of the width direction of the conveyor belt have the function of blocking waste water from splashing outside the conveyor belt when falling on the conveyor belt, so that the neatness of the outer side of the screening and conveying device is improved; the interval sets up and forms the rivers passageway that supplies waste water to flow between water blocking strip and the fender soil strip, is favorable to accelerating the speed of waste water downward flow to header tank, can make rivers still can the downflow when the water guiding hole is plugged up to the grit moreover, has reduced the possibility of waste water deposit on the conveyer belt surface.

Optionally, a permeable soil blocking cloth for blocking sand from entering the water flow channel is fixed between the adjacent soil blocking strips.

Through adopting foretell technical scheme, through setting up the fender cloth that permeates water, the waste water need pass through the fender cloth that permeates water when flowing to rivers passageway, and the fender cloth that permeates water has the effect of further intercepting grit this moment, reduces the grit and gets into rivers passageway and with the possibility of rivers passageway jam.

Optionally, the water blocking strip is arranged in a V shape, and the middle of the water blocking strip protrudes towards the conveying direction of the conveyor belt.

Through adopting foretell technical scheme, behind waste water falls into screening conveyor, waste water supports in the one side of water bar towards direction of delivery under the action of gravity, can remove to the both sides of water bar width direction along the side of water bar simultaneously to guide waste water more quick through filtering in the rivers passageway that keeps off soil cloth and flow into, further reduced waste water deposit in the possibility on conveyer belt surface.

Optionally, the screening and conveying device further comprises a rotating roller group for mounting the conveyor belt and a driving assembly for driving the rotating roller group to rotate.

The rotating roller group comprises a driving roller, a transmission roller and a guide roller, the driving roller is positioned at the highest side of the screening and conveying device, and the driving assembly is connected to the driving roller; the guide roll is located below the highest side of the screening and conveying device, and a beating mechanism used for beating the conveying belt is installed between the driving roll and the guide roll.

By adopting the technical scheme, the driving assembly is controlled to operate, and drives the driving roller to rotate and drive the conveying belt to convey the sand upwards; the guide roller is arranged to enable the part of the highest side of the conveying belt to be partially vertically arranged, and the vertical part of the conveying belt can be flapped through the installation of the flapping mechanism, so that sand can fall into the sand collecting box more completely, and the possibility that the sand is adhered to the surface of the conveying belt is reduced.

Optionally, the knockout mechanism includes the fixed cylinder that sets up and connects in the roof pressure piece of cylinder output shaft, when the piston rod of cylinder stretches out, the roof pressure piece supports and leans on in the conveyer belt.

Through adopting foretell technical scheme, through control cylinder intermittent type formula operation, can reach the conveyer belt when the piston rod of cylinder stretches out to have the effect of beating the conveyer belt intermittent type, reduce grit adhesion in the surperficial possibility of conveyer belt.

Optionally, a spiral plate is fixed inside the turbulence cylinder, and the spiral plate enables a spiral channel to be formed inside the turbulence cylinder.

Through adopting foretell technical scheme, waste water can be along the fixed spiral path that is of spiral after carrying to a vortex section of thick bamboo inside via the inlet channel and flows, and the centrifugal force that produces when the waste water flows makes grit and the abundant disturbance of waste water, has reduced the possibility of bonding each other and deposit in the waste water bottom between the grit, the follow-up screening to the grit of being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after the wastewater falls into the screening and conveying device, the wastewater can flow downwards along the screening and conveying device under the action of gravity and finally flows into the water collecting tank, and the gravels in the wastewater can be conveyed upwards along with the screening and conveying device and finally fall into the sand collecting tank, so that the gravels are conveniently recovered and reused;

2. by arranging the water blocking strips, water flow channels are formed between the soil blocking strips and the water blocking strips at intervals, so that the downward flowing speed of the wastewater to the water collecting tank is increased, and the possibility of depositing the wastewater on the surface of the conveying belt is reduced;

3. make the inside helical passage that forms of vortex section of thick bamboo through setting up the spiral plate, grit and the abundant disturbance of waste water when can making waste water flow have reduced between the grit and bonded each other and deposit in the possibility of waste water bottom.

Drawings

FIG. 1 is an overall block diagram of an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of a spoiler cylinder in an embodiment of the present application, which mainly shows an internal structure of the spoiler cylinder;

FIG. 3 is a schematic structural diagram of a screening and conveying device, a water collecting tank and a sand collecting box in the embodiment of the application;

FIG. 4 is a schematic view of the internal structure of a screening conveyor in an embodiment of the present application;

fig. 5 is an enlarged view of a portion a in fig. 3, and mainly shows the structure of the surface of the conveyor belt.

Description of reference numerals: 1. a water delivery pipeline; 2. a turbulence cylinder; 21. a spiral plate; 22. a liquid outlet; 3. a screening conveyor; 31. a conveyor belt; 311. a soil retaining strip; 3111. a water guide hole; 312. a water-blocking strip; 313. a water permeable and soil blocking cloth; 314. a water flow channel; 32. a drive roll; 33. a driving roller; 34. a guide roller; 35. a drive assembly; 36. a frame; 361. a fixed seat; 4. a water collection tank; 5. a sand collecting box; 6. a knockout mechanism; 61. a cylinder; 62. and (7) pressing the block.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses grit screening system is retrieved to concrete mixing plant.

Referring to fig. 1, a screening system for recycled sand and stone in a concrete mixing plant comprises a water pipeline 1, a turbulence cylinder 2, a screening and conveying device 3, a water collection tank 4 and a sand collection tank 5.

Referring to fig. 2, a water pipe 1 is connected to an upper portion of a turbulence cylinder 2, and waste water generated in the concrete mixing plant can be transferred to the inside of the turbulence cylinder 2 through the water pipe 1. The turbulence cylinder 2 in the embodiment is in a cone shape, the inner wall of the turbulence cylinder 2 is fixedly welded with the spiral plate 21, and the spiral plate 21 is integrally arranged in a spiral ascending manner, so that a spiral channel is formed in the turbulence cylinder 2; when waste water was carried to vortex section of thick bamboo 2 inside, waste water can flow down along helical channel to make the inside grit of waste water fully disturb, reduce the possibility that bonds each other between the grit.

Referring to fig. 1 and 2, the bottom of the turbulence cylinder 2 is provided with a liquid outlet 22, and the screening and conveying device 3 is positioned below the turbulence cylinder 2; the wastewater flows down through the spiral channel and falls from the outlet 22 onto the screening device, thereby screening the wastewater and the sand contained in the wastewater.

Referring to fig. 3, 4, the screening conveyor 3 comprises a frame 36, a conveyor belt 31, a set of turning rollers comprising a drive roller 32, a drive roller 33 and a guide roller 34, and a drive assembly 35; the frame 36 comprises two fixed seats 361 which are arranged at intervals, and the driving roller 32, the driving roller 33 and the guide roller 34 are rotatably arranged between the two fixed seats 361; in this embodiment, the driving roller 33 and the guide roller 34 are disposed in the same horizontal plane, the driving roller 32 is located right above the guide roller 34, and the driving roller 32 and the guide roller 34 are disposed at an interval.

Referring to fig. 3 and 4, the driving roller 32, the driving roller 33 and the guide roller 34 are used for mounting the conveyor belt 31 together, the mounted conveyor belt 31 is located right below the spoiler 2, and one side of the conveyor belt 31 facing the spoiler 2 is arranged obliquely upwards; the driving assembly 35 in this embodiment is configured as a driving motor, the driving motor is fixed to one of the fixing seats 361, and an output shaft of the driving motor is fixedly connected to the driving roller 32; when the driving motor is operated, the driving roller 32 is driven by the driving motor to rotate, so that the conveyor belt 31 is conveyed around the driving roller 32, the driving roller 33 and the guide roller 34.

Referring to fig. 3 and 4, in the present application, the conveying direction of the screening and conveying device 3 is set obliquely upward, that is, one side of the conveyor belt 31 close to the spoiler 2 is conveyed toward the direction close to the driving roller 32; the water collection tank 4 and the sand collection box 5 are respectively positioned on both sides of the extension direction of the frame 36. The water collecting tank 4 is close to one side of the fixed seat 361 provided with the driving roller 33 and is used for collecting wastewater flowing downwards under the action of gravity; the sand-collecting box 5 is located at the side of the fixed seat 361 where the drive roller 32 is installed, and is used for collecting sand conveyed upwards along with the conveyor belt 31.

Referring to fig. 3 and 5, a plurality of retaining bars 311 for intercepting sand are integrally formed on the surface of the conveyor belt 31, and all the retaining bars 311 are arranged at equal intervals along the extension direction of the conveyor belt 31; the whole body of the retaining strip 311 is in a V shape, the middle part of the retaining strip 311 protrudes towards the conveying direction of the conveyor belt 31, and each retaining strip 311 is provided with a water guide hole 3111 penetrating through the two sides of the retaining strip 311 along the conveying direction of the conveyor belt 31.

Referring to fig. 3 and 5, two permeable soil blocking cloths 313 are bonded between adjacent soil blocking strips 311, and the two permeable soil blocking cloths 313 are respectively positioned on two sides of the soil blocking strips 311 in the width direction; the permeable soil retaining cloth 313 in this embodiment is configured as geotextile, and can well intercept gravels in the wastewater and make the wastewater penetrate through the geotextile.

Referring to fig. 3 and 5, two water-blocking strips 312 are disposed on the outer sides of all the soil-blocking strips 311, the two water-blocking strips 312 are respectively bonded and fixed to two sides of the width direction of the conveyor belt 31, and each water-blocking strip 312 is disposed around the periphery of the conveyor belt 31; each of the water blocking strips 312 is spaced apart from the soil blocking strip 311 such that a water flow channel 314 for wastewater to flow downward is formed between the water blocking strip 312 and the soil blocking strip 311.

Referring to fig. 3 and 4, a beating mechanism 6 for beating the conveyor belt 31 is fixed on one side of each fixing seat 361 facing to the adjacent fixing seat 361; the knockout mechanism 6 includes a cylinder 61 and a top pressing block 62, the cylinder 61 is fixed on the fixed seat 361 and is located between the driving roll 32 and the guide roll 34, a piston rod of the cylinder 61 is arranged towards the conveyor belt 31 between the driving roll 32 and the guide roll 34, and the top pressing block 62 is fixedly connected to the piston rod of the cylinder 61.

The cylinder 61 in this embodiment is in the retraction state in the normal state, when the belt 31 conveys the sand and stone to move upwards, the cylinder 61 is controlled to make the cylinder 61 move intermittently, the piston rod of the cylinder 61 can drive the top pressing block 62 to extend out, so that the top pressing block 62 gradually beats the belt 31 between the driving roller 32 and the guide roller 34, the sand and stone adhered to the surface of the belt 31 can fall into the sand collecting box 5, and the surface finish degree of the belt 31 is improved.

The implementation principle of concrete mixing plant recovery grit screening system is:

when the screening system for recycling sand and stone in the concrete mixing plant is used, the driving assembly 35 acts and drives the conveyor belt 31 to convey upwards in an inclined mode, and waste water passes through the water conveying pipeline 1 and the turbulence cylinder 2 and then falls to the conveyor belt 31 from the liquid outlet 22 at the bottom of the turbulence cylinder 2; the wastewater with fluidity can flow downwards along the diversion holes under the action of gravity, or flow downwards after entering the water flow channel 314 through the permeable soil-blocking cloth 313, and finally flow into the water collection tank 4 for centralized treatment; the grit in the waste water is kept off the interception of soil strip 311 and drainage retaining cloth to along with conveyer belt 31 is carried downwards, is poured into in the sand collection box 5 at the highest point of conveyer belt 31 at last, thereby can conveniently retrieve and recycle the grit, reduces the extravagant phenomenon of resource.

The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a grit screening system is retrieved to concrete mixing plant which characterized in that: comprises a water pipe (1), a turbulence cylinder (2) and a screening and conveying device (3) which are arranged in sequence along the conveying direction of the waste water; the water pipe (1) is connected into the turbulence cylinder (2), and the bottom of the turbulence cylinder (2) is provided with a liquid outlet (22); screening conveyor (3) are located the below of vortex section of thick bamboo (2), the direction of delivery slope of screening conveyor (3) sets up, the below of screening conveyor (3) is equipped with water-collecting tank (4) that are used for collecting waste water and is used for collecting sand and stone collection box (5) respectively, water-collecting tank (4) are located the low side of screening conveyor (3), sand collection box (5) are located the high side of screening conveyor (3).

2. The concrete mixing plant reclaimed sand screening system of claim 1, wherein: screening conveyor (3) are including conveyer belt (31), the surface of conveyer belt (31) is equipped with a plurality of soil retaining strip (311) that are used for intercepting the grit, each soil retaining strip (311) all are equipped with a plurality of water guide holes (3111).

3. The concrete mixing plant reclaimed sand screening system of claim 2, wherein: the both sides of retaining soil strip (311) are equipped with water blocking strip (312) respectively, two water blocking strip (312) are fixed in conveyer belt (31) width direction's both sides respectively, each water blocking strip (312) all set up and form rivers passageway (314) that supply waste water to flow with retaining soil strip (311) interval.

4. The concrete mixing plant reclaimed sand screening system of claim 3, wherein: and a permeable soil retaining cloth (313) for blocking sand from entering the water flow channel (314) is fixed between the adjacent soil retaining strips (311).

5. The concrete mixing plant reclaimed sand screening system of claim 3, wherein: the retaining strip (311) is arranged in a V shape, and the middle of the retaining strip (311) is arranged in a protruding mode in the conveying direction of the conveying belt (31).

6. The concrete mixing plant reclaimed sand screening system of claim 1, wherein: the screening and conveying device (3) further comprises a rotating roller group for mounting the conveying belt (31) and a driving assembly (35) for driving the rotating roller group to rotate;

the rotating roller group comprises a driving roller (32), a transmission roller (33) and a guide roller (34), the driving roller (32) is positioned on the highest side of the screening and conveying device (3), and the driving assembly (35) is connected to the driving roller (32); the guide roll (34) is located below the highest side of the screening and conveying device (3), and a beating mechanism (6) used for beating the conveying belt (31) is installed between the driving roll (32) and the guide roll (34).

7. The concrete mixing plant reclaimed sand screening system of claim 6, wherein: the knockout mechanism (6) is including fixed cylinder (61) that sets up and connect in top briquetting (62) of cylinder (61) output shaft, when the piston rod of cylinder (61) stretches out, top briquetting (62) support and lean on in conveyer belt (31).

8. The concrete mixing plant reclaimed sand screening system of claim 1, wherein: the inside of vortex section of thick bamboo (2) is fixed with spiral plate (21), spiral plate (21) make vortex section of thick bamboo (2) inside formation helical channel.