CN213471720U - Concrete mixing plant and concrete mixing plant are with feed bin - Google Patents

Abstract

The application relates to a concrete mixing plant and concrete mixing plant are with feed bin down belongs to concrete mixing equipment technical field. The concrete mixing plant comprises a mixing main machine and a discharging bin matched with the mixing main machine, wherein the discharging bin comprises a bin body and a discharging pipe connected to the lower end of the bin body, and a discharging mechanism is arranged on the discharging pipe; the discharging mechanism comprises a valve plate, a valve plate through hole is formed in the side wall of the discharging pipe, and the valve plate penetrates through the valve plate through hole; one end of the valve plate, which penetrates out of the valve plate through hole, is connected with a valve plate driving mechanism which is used for driving the valve plate to move so as to close or open the orifice of the blanking pipe. The concrete mixing plant of this application can reduce the concrete thick liquids and drop, practices thrift the concrete thick liquids and can also reduce environmental pollution.

Description

Concrete mixing plant and concrete mixing plant are with feed bin

Technical Field

The application relates to the technical field of concrete mixing equipment, in particular to a concrete mixing plant and a discharging bin for the concrete mixing plant.

Background

The concrete mixing plant is a device for intensively mixing concrete, has the advantages of mechanization, high automation degree and high production efficiency, can ensure that the concrete has higher quality, and is commonly used for large and medium-sized projects with large concrete project quantity, long construction period and centralized construction sites. The concrete mixing plant mainly comprises a material weighing system, a material conveying system, a mixing host, a control system and the like.

After being weighed in the material weighing system, the concrete raw materials are conveyed into a stirring bin of the stirring host machine through the material conveying system to be stirred, and the stirred concrete slurry is discharged through a discharge port of the stirring host machine. The main mixer of a concrete mixing plant is usually arranged on a frame and is at a certain distance from the ground, and concrete slurry discharged from a discharge port of the main mixer can be directly added into a charging bucket of a concrete tank truck (mixer truck).

Chinese utility model patent with grant publication number CN203579898U discloses a stirring station, which comprises a stirring station host, wherein the lower part of the stirring station host is provided with a discharge port, and the stirring vehicle can stop the discharge port below the stirring station host to connect the material through the mode of backing a car.

Because the structure of the main mixing machine that the mixing plant of difference adopted is not identical, the structure of the discharge gate of these main mixing machines is also different, in order to adapt to different main mixing machines, many mixing plants have all set up concrete feed bin under the main mixing machine, feed bin includes big-end-up's storehouse body, storehouse body lower extreme is provided with the unloading pipe, the concrete material that stirs among the main mixing machine can get into in the feed bin down, glide along the storehouse body, and add the concrete tank car by the unloading pipe, can adapt to the discharge gate of different main mixing machines well. However, after the feeding of the feeding bin is finished, a small amount of concrete slurry is bonded on the inner wall of the feeding bin and falls on the ground under the action of gravity, so that material waste is caused, and the environment is also influenced.

SUMMERY OF THE UTILITY MODEL

In order to reduce the waste of concrete thick liquids, this application provides a concrete mixing plant and concrete mixing plant are with feed bin down.

In a first aspect, the concrete mixing plant provided by the application adopts the following technical scheme:

a concrete mixing plant comprises a mixing main machine and a blanking bin matched with the mixing main machine, wherein the blanking bin comprises a bin body and a blanking pipe connected to the lower end of the bin body, and a discharging mechanism is arranged on the blanking pipe; the discharging mechanism comprises a valve plate, a valve plate through hole is formed in the side wall of the discharging pipe, and the valve plate penetrates through the valve plate through hole; one end of the valve plate, which penetrates out of the valve plate through hole, is connected with a valve plate driving mechanism which is used for driving the valve plate to move so as to close or open the orifice of the blanking pipe.

Through adopting above-mentioned technical scheme, be provided with discharge mechanism on the unloading pipe of concrete mixing plant's feed bin down of this application, discharge mechanism includes the valve plate to set up valve plate actuating mechanism and close the mouth of pipe of feed opening in order to drive the valve plate, reduced the concrete thick liquids that bond in the feed bin and dropped to ground, practiced thrift the raw materials, still protected the environment. And after the stirring host machine is used for stirring the concrete slurry, the concrete slurry can be timely discharged into the discharging bin, so that the stirring host machine can continuously feed and stir the concrete, and the efficiency of concrete stirring is improved. When concrete is required to be filled into the concrete tank truck, the feeding can be carried out only by opening the valve plate of the discharging mechanism, and the valve plate can be closed in real time or the feeding speed can be adjusted by controlling the opening degree of the valve plate.

Preferably, the position, which is located below the valve plate through hole, on the side wall of the blanking pipe is provided with a feed back through hole, the outer surface of the side wall of the blanking pipe is provided with a feed back plate for guiding slurry falling from the valve plate into the feed back through hole, one end of the feed back plate is connected to the side wall of the blanking pipe below the feed back through hole, and the other end of the feed back plate extends upwards along the direction away from the side wall of the blanking pipe.

Through adopting above-mentioned technical scheme, because the valve plate goes out the valve plate and perforates, the valve plate surface takes the concrete thick liquids out easily, and the perforation below of valve plate sets up the feed back through-hole, can make the partial concrete thick liquids that the valve plate was taken out flow in the feed back through-hole along the unloading outer wall of pipe in, retrieve the concrete, further reduce extravagantly to environmental pollution has been reduced. Through setting up the feed back board, when the thick liquids that the valve plate was taken out drops from the valve plate, fall on the feed back board upper surface, flow back through-hole along the feed back board, guaranteed that concrete thick liquids fully retrieves.

Preferably, the upper end of the feed back plate is abutted against the lower surface of the valve plate.

Through adopting above-mentioned technical scheme, with the upper end and the valve plate lower surface butt of feed back board, can scrape the thick liquids of valve plate lower surface to make it slide to the feed back through-hole along feed back board upper surface in.

Preferably, the material return plate is an arc-shaped plate, and an arc-shaped opening of the arc-shaped plate faces the side wall of the discharging pipe.

Through adopting above-mentioned technical scheme, the feed back board sets up to the arc, and the lateral wall of arc opening orientation down material pipe, is favorable to the thick liquids that fall into on the feed back board gliding to the position that is close to the bottom of feed back board smoothly, also is convenient for concentrate thick liquids, has reduced the gathering of thick liquids in the feed back board upper end.

Preferably, at least one of the upper hole wall and the lower hole wall of the valve plate through hole is provided with vertical teeth for stopping large-particle materials on the valve plate, and the vertical teeth are arranged on the hole wall of the valve plate through hole at intervals along the direction parallel to the side wall of the blanking pipe.

By adopting the technical scheme, if the upper and lower heights of the through hole of the valve plate are close to the thickness of the valve plate, the valve plate is easily clamped between the valve plate and the hole wall of the through hole of the valve plate by materials, so that the valve plate is unsmooth in movement. If the up-and-down height of the valve plate through hole is far greater than the thickness of the valve plate, a large amount of materials are easily brought out of the valve plate through hole by the valve plate. Set up perpendicular tooth on the fenestrate pore wall of valve plate, can block the material of large granule, prevent to be taken out the valve plate and perforate or block the removal that hinders the valve plate in the valve plate is perforated by the valve plate.

Preferably, the outer side wall of the blanking pipe is also provided with a scraping mechanism for scraping materials on the upper surface of the valve plate, the scraping mechanism comprises a scraping plate connected to the side wall of the blanking pipe, the lower surface of the scraping plate is abutted to the upper surface of the valve plate, the scraping plate is provided with two guide surfaces perpendicular to the upper surface of the valve plate, and the distance between the two guide surfaces in the direction parallel to the upper surface of the valve plate is gradually reduced along the direction close to the side wall of the blanking pipe; the width of the return plate in a direction parallel to the upper surface of the valve plate is larger than the width of the valve plate in that direction.

Through adopting above-mentioned technical scheme, the material that does not receive the vertical tooth and stop on the valve plate perforation can be taken out the valve plate perforation by the valve plate, sets up and scrapes the material mechanism, can scrape remaining material on the valve plate to remove to the valve plate both sides along the guide, finally drop from the valve plate, fall on the feed back board and enter the feed back through-hole, retrieve the material.

Preferably, the material guiding surface is an inwards concave cambered surface.

By adopting the technical scheme, the material guide surface is arranged to be the concave arc surface, so that the material on the upper surface of the valve plate close to the central line of the valve plate is more easily dispersed to two sides, and then falls onto the material return plate from two sides of the valve plate, and the regional aggregation of the material between the scraper plate and the outer side wall of the discharging pipe is reduced.

Preferably, the scraping mechanism further comprises a supporting arm, the supporting arm comprises a cross arm and a vertical arm, one end of the cross arm is connected to the outer surface of the side wall of the discharging pipe, the other end of the cross arm is fixedly connected with the upper end of the vertical arm, and one end, far away from the cross arm, of the vertical arm is connected to the scraping plate.

Through adopting above-mentioned technical scheme, set up the scraper blade at the lower extreme of erecting the arm to connect on the unloading pipe lateral wall through the xarm, can make and form a great space between support arm and the scraper blade upper surface, further reduced the possibility of material gathering between xarm and valve plate.

Preferably, the two ends of the feed back plate are provided with sliding plates for receiving materials scraped from the upper surface of the valve plate, and the sliding plates extend from bottom to top gradually in the direction away from the center of the feed back plate.

By adopting the technical scheme, the sliding plates are arranged at the two ends of the feed back plate and are arranged obliquely, so that materials falling from the upper surface of the valve plate can slide to the feed back through holes along the sliding plates, and the aggregation of the falling materials at the two ends of the feed back plate is reduced.

In a second aspect, the application provides a concrete mixing plant uses feed bin adopts following technical scheme:

a blanking bin for a concrete mixing plant comprises a bin body and a blanking pipe connected to the lower end of the bin body, wherein a discharging mechanism is arranged on the blanking pipe; the discharging mechanism comprises a valve plate, a valve plate through hole is formed in the side wall of the discharging pipe, and the valve plate penetrates through the valve plate through hole; one end of the valve plate, which penetrates out of the valve plate through hole, is connected with a valve plate driving mechanism which is used for driving the valve plate to move so as to close or open the orifice of the blanking pipe.

Through adopting above-mentioned technical scheme, be provided with discharge mechanism on the unloading pipe of feed bin, after the host computer of stirring is accomplished the concrete slurry stirring, can in time unloading to the feed bin down in, make the host computer of stirring continue reinforced stirring concrete, improved the efficiency of concrete mixing. When concrete is required to be filled into the concrete tank truck, the feeding can be carried out only by opening the valve plate of the discharging mechanism, and the valve plate can be closed in real time or the feeding speed can be adjusted by controlling the opening degree of the valve plate.

Preferably, a feed back through hole is formed in the position, below the valve plate through hole, on the side wall of the blanking pipe, a feed back plate for guiding slurry falling from the valve plate into the feed back through hole is arranged on the side wall of the blanking pipe, one end of the feed back plate is connected to the side wall of the blanking pipe below the feed back through hole, and the other end of the feed back plate extends upwards along the direction far away from the side wall of the blanking pipe. Preferably, the upper end of the feed back plate is abutted against the lower surface of the valve plate. Preferably, the material return plate is an arc-shaped plate, and an arc-shaped opening of the arc-shaped plate faces to the side wall of the discharging pipe. Preferably, at least one of the upper hole wall and the lower hole wall of the valve plate through hole is provided with vertical teeth for stopping large-particle materials on the valve plate, and the vertical teeth are arranged on the hole wall of the valve plate through hole at intervals along the direction parallel to the side wall of the blanking pipe. Preferably, the outer side wall of the blanking pipe is also provided with a scraping mechanism for scraping materials on the upper surface of the valve plate, the scraping mechanism comprises a scraping plate connected on the side wall of the blanking pipe, the lower surface of the scraping plate is abutted against the upper surface of the valve plate, the scraping plate is provided with two guide surfaces perpendicular to the upper surface of the valve plate, and the distance between the two guide surfaces in the direction parallel to the upper surface of the valve plate is gradually reduced along the direction close to the side wall of the blanking pipe; the width of the return plate in a direction parallel to the upper surface of the valve plate is larger than the width of the valve plate in that direction. Preferably, the material guiding surface is an inwards concave cambered surface. Preferably, the scraping mechanism further comprises a supporting arm, the supporting arm comprises a cross arm and a vertical arm, one end of the cross arm is connected to the outer side wall of the blanking pipe, the other end of the cross arm is fixedly connected with the upper end of the vertical arm, and one end, far away from the cross arm, of the vertical arm is connected to the scraper. Preferably, the two ends of the feed back plate are provided with sliding plates for receiving materials scraped from the upper surface of the valve plate, and the sliding plates extend from bottom to top gradually in the direction away from the center of the feed back plate.

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

1. the concrete mixing plant of this application sets up discharge mechanism on the unloading pipe to adopt the valve plate to close the unloading pipe mouth of pipe or open, close the valve plate after the unloading is accomplished, can reduce the concrete thick liquids and drop, practiced thrift the raw materials and still reduced environmental pollution. The valve plate of this application can also realize the accurate control to feed bin unloading opportunity and unloading speed down, further reduces the concrete leakage volume in the feed bin down, has reduced the material waste.

2. The utility model provides a be provided with feed back through-hole and feed back board on concrete mixing plant's the unloading pipe outer wall, can retrieve the concrete thick liquids that the valve plate was taken out, further reduced the waste.

3. The utility model provides a be provided with perpendicular tooth on the valve plate perforation of concrete mixing plant, can block the material of great granule on the valve plate, avoid it to be taken out or the card is established on valve plate and the fenestrate pore wall of valve plate by the valve plate. Furtherly, be provided with on the valve plate and scrape material mechanism, can strike off the thick liquids that are taken out by the valve plate through erecting the tooth clearance to and then drop on the feed back board from the valve plate both sides, along the feed back board entering feed back through-hole, retrieve the thick liquids, further improved the thorough degree that concrete slurry retrieved.

Drawings

FIG. 1 is a schematic view showing the construction of a concrete mixing plant according to example 1 of the present application;

FIG. 2 is an enlarged view of a portion of area A of FIG. 1;

fig. 3 is a schematic structural view of a blanking bin in embodiment 2 of the present application;

fig. 4 is a partial structural schematic diagram of a blanking bin in embodiment 3 of the present application;

FIG. 5 is a schematic view of a partial structure of a blanking silo in embodiment 4 of the present application;

description of reference numerals: 1. a frame; 2. a stirring main machine; 3. discharging a bin; 31. a bin body; 32. a discharging pipe; 33. a valve plate; 34. a valve plate drive mechanism; 341. driving the hydraulic cylinder; 342. a connecting rod; 35. a material returning structure; 351. a feed back through hole; 352. a material returning plate; 353. a material sliding plate; 354. a striker plate; 36. vertical teeth; 37. a support arm; 371. a cross arm; 372. a vertical arm; 38. a scraper.

Detailed Description

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

The embodiment of the application discloses a concrete mixing plant.

Example 1

Referring to fig. 1, the concrete mixing plant of the embodiment includes a frame 1, and a mixing main machine 2 and a feed bin 3 are sequentially arranged on the frame 1 from top to bottom. The stirring main machine 2 is a horizontal stirrer, in particular a horizontal double-shaft stirrer. Stirring host computer 2 includes the mixer casing, and the mixer casing includes lateral wall and diapire, is provided with the mixer discharge gate on the diapire, is provided with the mixer discharge valve on the mixer discharge gate.

Referring to fig. 2, the lower hopper 3 includes a hopper body 31. The bin body 31 is a conical tube with a large upper part and a small lower part, and the axis of the bin body 31 is arranged along the vertical direction. The bin body 31 is a square conical tube, i.e. the cross section of the bin body 31 in the horizontal direction is square. The upper end of the bin body 31 is provided with a feed inlet of the feed bin, the lower end of the feed bin 3 is provided with a feed outlet of the feed bin, and the feed inlet of the feed bin and the feed outlet of the feed bin are both square. The discharging hole of the discharging bin is connected with a discharging pipe 32, the discharging pipe 32 is a square pipe, and the shape and the size of an opening in the upper end of the discharging pipe 32 are consistent with those of the discharging hole of the discharging bin.

The discharging pipe 32 is provided with a discharging mechanism. The discharging mechanism comprises a valve plate 33, and the valve plate 33 is horizontally arranged. A valve plate through hole is formed in one side wall of the discharging pipe 32, and the valve plate 33 penetrates through the valve plate through hole. The side wall of the feed pipe 32 provided with the valve plate through hole constitutes a mounting side wall. The valve plate driving mechanism 34 is arranged on the mounting side wall, specifically, a driving hydraulic cylinder 341 is fixedly arranged at a position above the valve plate through hole outside the mounting side wall, one end, far away from the piston rod, of a cylinder body of the driving hydraulic cylinder 341 is fixedly connected to the mounting side wall of the blanking pipe 32, and the length direction of the cylinder body of the hydraulic cylinder is perpendicular to the mounting side wall and extends along the horizontal direction. The end fixedly connected with connecting rod 342 of the piston rod of pneumatic cylinder, connecting rod 342 sets up along vertical direction, the upper end of connecting rod 342 and the end fixedly connected of the piston rod of pneumatic cylinder, the lower extreme and the corresponding end fixedly connected of valve plate 33. The discharging mechanism further comprises a controller (not shown), the controller is connected with a control valve of the hydraulic cylinder, a discharging switch is connected to the controller through a control line, and the piston rod of the hydraulic cylinder is controlled to move towards the direction close to or far away from the installation side wall through the discharging switch and the controller, so that the valve plate 33 is driven to move in the direction.

The length of the valve plate 33 in the moving direction is larger than the side length of the square of the section of the discharging pipe 32, when the piston rod of the hydraulic cylinder drives the valve plate 33 to move to the position where the opening of the valve plate 33 is maximum, the end part of one end of the valve plate 33 in the discharging pipe 32 is close to the valve plate through hole, so that concrete in the discharging bin 3 can be discharged smoothly along the discharging pipe 32. The width of the valve plate 33 perpendicular to its direction of movement substantially coincides with the side length of the square of the cross section of the blanking pipe 32.

The section of the valve plate 33 perpendicular to the moving direction is rectangular, the valve plate through hole on the side wall of the blanking pipe 32 is a rectangular hole, and the width of the valve plate through hole in the horizontal direction is equal to the width of the valve plate 33 or the width of the valve plate through hole is slightly larger than the width of the valve plate 33. The height of the valve plate penetration hole in the vertical direction is slightly larger than the thickness of the valve plate 33.

When the concrete mixing plant of this embodiment uses, close the valve plate 33 of feed bin 3 through drive pneumatic cylinder 341 earlier, then utilize stirring host computer 2 to carry out the concrete mixing, the back that finishes of stirring, open the discharge valve on the stirring discharge gate of stirring host computer 2, make the good concrete material of stirring all get into feed bin 3 down. Then the concrete is added into the stirring main machine 2 to continue the concrete stirring. When the concrete pump truck stops below the discharging bin 3, the valve plate 33 on the discharging bin 3 is opened, so that concrete in the discharging bin 3 is added into the concrete tank truck, and after the concrete tank truck is filled, the valve plate 33 is closed by driving the hydraulic cylinder 341. And when the next concrete tank truck stops below the discharging bin 3, the valve plate 33 on the discharging bin 3 is opened, and feeding is carried out again.

Example 2

Referring to fig. 3, in the concrete mixing plant of this embodiment, on the basis of embodiment 1, a feed back structure 35 is further provided on an outer side wall of the blanking pipe 32, the feed back structure 35 includes a feed back through hole 351, the feed back through hole 351 is provided at a position below a valve plate through hole of a side wall (i.e., an installation side wall) of the blanking pipe 32 where the valve plate through hole is provided, and the feed back through hole 351 is rectangular in shape, which is long in a horizontal direction and short in a vertical direction. A material returning plate 352 is fixedly arranged at the position of the lower edge of the material returning through hole 351, and the material returning plate 352 is a flat plate. The width of the material returning plate 352 in the horizontal direction is consistent with the horizontal width of the side wall of the blanking pipe 32, the lower end of the material returning plate 352 is fixedly connected to the side wall of the blanking pipe 32, and the upper end extends upwards along the direction far away from the side wall of the blanking pipe 32. An end surface of an upper end of the return plate 352 extends in the horizontal direction, and the end surface of the upper end of the return plate 352 abuts against the lower surface of the valve plate 33. Further, the feed back plate 352 is an arc-shaped plate, an arc opening of the arc-shaped plate faces the outer side wall of the feeding pipe 32, and an included angle between a tangent line of an arc-shaped contour line of the cross section of the arc-shaped plate in the vertical direction and the outer side wall of the feeding pipe 32 is gradually increased from top to bottom. The concrete slurry adhered to the lower surface of the valve plate 33 can be scraped off by the upper end of the return plate 352 and slide down along the side surface of the return plate 352 close to the feed pipe 32 into the return through hole 351.

When the valve plate 33 is pulled out of the valve plate through hole by the driving hydraulic cylinder 341, concrete or water carried by the surface of the valve plate 33 can flow down along the outer wall of the blanking pipe 32 and enter the blanking pipe 32 through the feed back through hole 351. And the concrete slurry that falls to the upper surface of feed back plate 352 also can slide down along the upper surface of feed back plate 352 and enter feed back through-hole 351, and then realize the recovery of concrete slurry, reduce extravagantly, also avoid the polluted environment.

Example 3

Referring to fig. 4, the concrete mixing plant of this embodiment is different from embodiment 2 in that the height of the valve plate through hole in the vertical direction is greater than the thickness of the valve plate 33, and a plurality of vertical teeth 36 are fixedly arranged on the upper hole wall of the valve plate through hole and are sequentially and uniformly distributed at intervals in the horizontal direction perpendicular to the movement direction of the valve plate 33. Similarly, a plurality of vertical teeth 36 are also fixedly arranged on the lower hole wall of the valve plate through hole, and the vertical teeth 36 are also sequentially and uniformly distributed at intervals along the horizontal direction perpendicular to the moving direction of the valve plate 33. The vertical teeth 36 on the upper hole wall and the lower hole wall of the valve plate through hole are both rectangular structures, the length of the vertical teeth 36 in the moving direction of the valve plate 33 is equal to the thickness of the tube wall of the blanking tube 32, and the horizontal width of the vertical teeth 36 in the direction perpendicular to the moving direction of the valve plate 33 can be set according to needs, and is generally 1-2 cm. The width of the space between two adjacent vertical teeth 36 is equal to the width of the vertical teeth 36. The lower surface of the vertical tooth 36 on the upper hole wall of the valve plate through hole is abutted to the upper surface of the valve plate 33 or is close to each other and arranged at intervals, and the upper surface of the vertical tooth 36 on the lower hole wall of the valve plate through hole is abutted to the lower surface of the valve plate 33. Thus, when the valve plate 33 moves outwards from the interior of the blanking pipe 32, the concrete on the valve plate 33 can be scraped off by the stopping action of the vertical teeth 36 and fall into the blanking pipe 32, and is prevented from being carried outside the blanking pipe 32.

Example 4

Referring to fig. 5, in the concrete mixing plant of this embodiment, on the basis of embodiment 3, a scraping mechanism is disposed on a side wall of the blanking pipe 32 on the side where the valve plate is perforated, and the scraping mechanism includes a support arm 37 and a scraper 38 connected to the support arm 37. The support arm 37 includes a horizontal cross arm 371, one end of the cross arm 371 is fixedly connected to a mounting side wall (an outer side wall on a side where the valve plate is perforated) of the discharging pipe 32, and the other end of the cross arm 371 extends in a direction away from the discharging pipe 32. The cross arm 371 is integrally perpendicular to the mounting side wall surface of the blanking pipe 32, one end of the cross arm 371, which is far away from the blanking pipe 32, is fixedly connected with a vertical arm 372, the upper end of the vertical arm 372 is fixedly connected with the cross arm 371, and the lower end of the vertical arm 372 is connected with the scraper 38. The plate surface of scraper 38 is parallel to the valve plate surface and the lower surface of scraper 38 is in contact with the upper surface of the valve plate, and the cross section of scraper 38 in the horizontal direction is approximately isosceles triangle. The three sides of scraper blade 38 all are perpendicular to scraper blade 38 face setting, and one of them side is on a parallel with the installation lateral wall, and two other sides are the indent cambered surface, and these two indent cambered surfaces reduce gradually in the direction that is close to the installation side in the distance that is on a parallel with the horizontal direction of installation side. This enables the two concave arc faces of the scraper 38 to scrape the remaining concrete slurry from the upper surface of the valve plate and to feed it along the arc faces to the edge of the valve plate.

The length of the material returning plate 352 in the horizontal direction parallel to the installation side wall is equal to or slightly wider than the width of the installation side wall, the two ends of the material returning plate 352 are fixedly provided with the sliding plates 353, the sliding plates 353 are flat plates or arc-shaped plates, and the two sliding plates 353 respectively extend from bottom to top in the direction away from the center of the material returning plate 352. One side of the sliding plate 353 close to the mounting side wall is fixedly connected with a material baffle 354, two sides of the material baffle 354 are respectively fixedly connected with the sliding plate 353 and the mounting side wall, and one side of the sliding plate 353 close to the material return plate 352 is fixedly connected with the material return plate 352. The concrete slurry on the upper surface of the valve plate is scraped to the edge of the valve plate by the scraper 38 and falls from the valve plate, can fall on the sliding plate 353 and slides into the feed back through hole 351 along the upper surface of the sliding plate 353, so that the recovery of the concrete slurry is realized, and the environmental pollution is reduced.

The embodiment of the application also discloses a feed bin for the concrete mixing plant. The structures of examples 1 to 4 of the feed bin for a concrete mixing plant according to the present application are completely the same as those of the feed bins of examples 1 to 4 of the concrete mixing plant described above, and the principle of use of the feed bin for a concrete mixing plant is also the same as that of the feed bins of examples 1 to 4 of the concrete mixing plant described above.

The concrete mixing plant of this application can practice thrift the concrete, reduces the loss, can also retrieve the concrete thick liquids that the valve plate was taken out, for before improving, output has improved 20-30%, adopts the mixing plant of 180 types to almost can support 240 types of mixing plant. The concrete mixing plant of this application is after the stirring host computer is accomplished the concrete slurry stirring, can in time unloading to feed bin down in, makes the host computer that stirs continue reinforced stirring concrete, has improved concrete mixing's efficiency, discovers according to practical application, can practice thrift the time about 20s between two stirring batches.

Claims (10)

1. The utility model provides a concrete mixing plant, includes stirring host computer (2) and with stirring host computer complex feed bin (3) down, its characterized in that: the blanking bin (3) comprises a bin body (31) and a blanking pipe (32) connected to the lower end of the bin body (31), and a discharging mechanism is arranged on the blanking pipe (32); the discharging mechanism comprises a valve plate (33), a valve plate through hole is formed in the side wall of the discharging pipe (32), and the valve plate (33) penetrates through the valve plate through hole; one end of the valve plate (33) penetrating through the valve plate through hole is connected with a valve plate driving mechanism (34) which is used for driving the valve plate (33) to move so as to close or open the nozzle of the blanking pipe (32).

2. The concrete mixing plant according to claim 1, characterized in that: feed back through-hole (351) have been seted up to the position that is located the perforated below of valve plate on the lateral wall of unloading pipe (32), be provided with on the lateral wall surface of unloading pipe (32) and be used for leading-in feed back board (352) of feed back through-hole (351) with the thick liquids that fall on valve plate (33), feed back board (352) one end is connected on unloading pipe (32) lateral wall of feed back through-hole (351) below, and the other end upwards extends along the direction of keeping away from unloading pipe (32) lateral wall.

3. The concrete mixing plant according to claim 2, characterized in that: the upper end of the material returning plate (352) is abutted against the lower surface of the valve plate (33).

4. The concrete mixing plant according to claim 2, characterized in that: the material return plate (352) is an arc-shaped plate, and an arc-shaped opening of the arc-shaped plate faces to the side wall of the feeding pipe (32).

5. A concrete mixing plant according to any one of claims 2 to 4, characterized in that: at least one of the upper hole wall and the lower hole wall of the valve plate through hole is provided with vertical teeth (36) used for stopping large-particle materials on the valve plate (33), and the vertical teeth (36) are arranged on the hole wall of the valve plate through hole at intervals along the direction parallel to the side wall of the blanking pipe (32).

6. The concrete mixing plant according to claim 5, characterized in that: the outer side wall of the discharging pipe (32) is further provided with a scraping mechanism for scraping materials on the upper surface of the valve plate (33), the scraping mechanism comprises a scraping plate (38) connected to the side wall of the discharging pipe (32), the lower surface of the scraping plate (38) is abutted to the upper surface of the valve plate (33), the scraping plate (38) is provided with two guide surfaces perpendicular to the upper surface of the valve plate (33), and the distance between the two guide surfaces in the direction parallel to the upper surface of the valve plate (33) is gradually reduced along the direction close to the side wall of the discharging pipe (32); the width of the return plate (352) in a direction parallel to the upper surface of the valve plate (33) is larger than the width of the valve plate (33) in that direction.

7. The concrete mixing plant according to claim 6, characterized in that: the material guiding surface is an inward concave cambered surface.

8. The concrete mixing plant according to claim 6, characterized in that: the scraping mechanism further comprises a supporting arm (37), the supporting arm (37) comprises a cross arm (371) and a vertical arm (372), one end of the cross arm (371) is connected to the outer surface of the side wall of the discharging pipe (32), the other end of the cross arm is fixedly connected with the upper end of the vertical arm (372), and one end, far away from the cross arm (371), of the vertical arm (372) is connected to the scraping plate (38).

9. The concrete mixing plant according to claim 6, characterized in that: two ends of the material return plate (352) are provided with sliding material plates (353) used for bearing materials scraped from the upper surface of the valve plate (33), and the sliding material plates (353) extend from bottom to top gradually towards the direction far away from the center of the material return plate (352).

10. The utility model provides a concrete mixing plant uses feed bin, includes storehouse body (31) and connects feed pipe (32) at storehouse body (31) lower extreme, its characterized in that: a discharging mechanism is arranged on the discharging pipe (32); the discharging mechanism comprises a valve plate (33), a valve plate through hole is formed in the side wall of the discharging pipe (32), and the valve plate (33) penetrates through the valve plate through hole; one end of the valve plate (33) penetrating through the valve plate through hole is connected with a valve plate driving mechanism (34) which is used for driving the valve plate (33) to move so as to close or open the nozzle of the blanking pipe (32).

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