Sunken concrete mixing station and construction method thereof

Abstract

The invention discloses a sunken concrete mixing station and a construction method thereof, and relates to the technical field of concrete batching, the sunken concrete mixing station comprises a feeding bin, and further comprises a mixing cylinder arranged on one side of the feeding bin, a batching mechanism arranged above a receiving bin and an electric lifting column arranged between a mounting plate and the feeding bin, a material guiding bin is fixedly connected to the mounting disc, material distributing barrels are arranged at the bottom of the material guiding bin, valve barrels are fixedly connected to the bottoms of the material distributing barrels, valve assemblies are arranged on the valve barrels, an air guiding pump is arranged at the top of the mounting disc between the material distributing barrels, and a dust filtering assembly is arranged at the air inlet end of the air guiding pump and arranged on the inner wall of the material guiding bin. A driving assembly is arranged at the bottom of the mounting disc below the air guide pump, an air guide pipe is arranged at the output end of the driving assembly, a sensing assembly is arranged on the air guide pipe on one side of the valve assembly, a material uniformizing assembly is arranged in the material mixing barrel, when the device is used, the raw material proportion is more accurate, and the concrete production quality is higher.

Description

Technical Field

[0001] The invention relates to the technical field of concrete batching, in particular to a sunken concrete mixing station and a construction method thereof. Background Art

[0002] In the construction of highways, railways and large-scale water conservancy projects, in order to give full play to the advantages of "centralized operation" with high equipment utilization, centralized management and effective quality control, my country implements the standardized requirements of "three concentrations" in the field of engineering construction, that is, each construction contract section implements centralized concrete mixing, centralized prefabrication of beams and centralized processing of steel bars. Construction companies usually build their own concrete mixing stations for centralized concrete production; and in the construction process of concrete mixing stations, batching devices are generally built directly on the ground. During the concrete mixing process, the loader unloads the materials into the batching device through the uphill ramp after loading. In this process, sand and gravel raw materials are spilled, causing ground pollution and energy waste. Therefore, in order to avoid the above phenomenon, a sunken concrete mixing station is currently built during project construction.

[0003] When the traditional sunken concrete mixing station is actually used, multiple batching bins will be set up to carry out the material guiding operations of various ingredients respectively. In order to ensure the accurate proportion of each raw material during the actual material guiding, the traditional detection method is to detect the material falling on the weighing equipment, but the falling material cannot be detected, which leads to inaccurate material ratio and affects the quality of concrete. At the same time, when the traditional mixing station is actually used, it cannot flexibly adjust the mixing efficiency according to the usage situation. Summary of the invention

[0004] The present invention provides a sunken concrete mixing station and a construction method thereof, which solve the problems in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The sunken concrete mixing station includes a feeding bin and a belt feeder arranged in the feeding bin, the bottom of the feeding bin is fixedly connected to a fixing frame, a mixing drum is arranged on one side of the feeding bin, a mixing assembly is arranged in the mixing drum, and a receiving bin is arranged on the top of the feeding bin;

[0007] The batching mechanism arranged above the material receiving bin includes a mounting disk, one side of the mounting disk is fixedly connected to the mounting plate, an electric lifting column is arranged between the mounting plate and the feeding bin, the mounting disk is fixedly connected to the material guide bin, and multiple material guide bins are arranged, the material guide bin extends to the bottom of the mounting plate, and the bottom is fixedly connected to the batching barrel, the bottom of the batching barrel is fixedly connected to the valve barrel, and a valve assembly is arranged on the valve barrel, an air pump is arranged on the top of the mounting disk between the batching barrels, a dust filter assembly is arranged at the air inlet end of the air pump, and the dust filter assembly is arranged on the inner wall of the material guide bin, a driving assembly is arranged at the bottom of the mounting disk below the air pump, an air duct is arranged at the output end of the driving assembly, the air duct is connected to the air pump, an induction assembly is arranged on the air duct on one side of the valve assembly, and the induction assembly controls the start and stop of the driving assembly, a material leveling assembly is arranged in the batching barrel, a transmission shell is arranged above the mounting plate, and a transmission assembly is arranged in the transmission shell.

[0008] As a preferred technical solution of the present invention, the mixing assembly includes a mounting rod fixedly penetrated on the mounting plate, the bottom of the mounting rod is fixedly connected to the mounting cover, a mixing column is rotatably penetrated on the mounting cover, and a stirring paddle is fixedly connected to the side wall of the mixing column below the mounting cover.

[0009] As a preferred technical solution of the present invention, the valve assembly includes a valve stem that slides through the valve cylinder, a valve port is opened on the valve stem, the bottom of the dosing cylinder on one side of the valve cylinder is fixedly connected to the metering cylinder, the metering cylinder is fixedly connected to the mounting shell close to the valve cylinder, a partition is fixedly connected inside the mounting shell, a piston block is slidably connected inside the mounting shell above the partition, one side of the piston block is fixedly connected to the valve stem, the side of the piston block away from the valve stem is fixedly connected to the elastic part, and one side of the elastic part is fixedly connected to the dosing cylinder.

[0010] As a preferred technical solution of the present invention, an electric adjusting column is fixedly connected inside the mounting shell below the partition, an air pressure sensing head is arranged on one side of the electric adjusting column, the telescopic end of the electric adjusting column extends to the outside of the mounting shell, and the end is fixedly connected to a movable arm, a baffle rod is arranged near one end of the movable arm near the air guide duct, and openings are opened on the side walls of the dosing barrel on the upper and lower sides of the partition.

[0011] As a preferred technical solution of the present invention, the metering cylinder is fixedly connected to the air inlet pipe near the air guide pipe, an adjusting rod is threaded through the bottom wall of the metering cylinder, a handle is provided at the bottom end of the adjusting rod, an adjusting block is provided on the adjusting rod, the adjusting block is slidably connected to the metering cylinder, and the top end of the adjusting rod is rotatably connected to the adjusting block.

[0012] As a preferred technical solution of the present invention, the dust filter assembly includes a dust filter cylinder fixedly arranged on the inner wall of the material guide bin, the air inlet end of the air pump is fixedly connected to the air guide cylinder, the air guide cylinder is fixedly connected to the dust filter cylinder, and the drive assembly includes a drive box fixedly arranged on the bottom of the mounting plate, one side of the drive box is fixedly connected to the drive motor, the output shaft of the drive motor extends into the drive box, and is transmission-connected to the air guide duct.

[0013] As a preferred technical solution of the present invention, the sensing component includes an air outlet duct fixedly arranged on one side of the air duct, the bottom of one side of the air outlet duct is fixedly connected to a sensing rod, a sensing button is arranged on the side wall of the sensing rod, the bottom of the air outlet duct on one side of the sensing rod is rotatably connected to a sensing column, a fixed sleeve is fixedly arranged on the sensing column, a torsion spring is arranged on the sensing column above the fixed sleeve, one side of the bottom of the sensing column is fixedly connected to a touch rod, and the touch rod corresponds to the sensing rod.

[0014] As a preferred technical solution of the present invention, the material leveling assembly includes a filter plate fixedly arranged in the dosing barrel, a rotating column is rotatably arranged on the filter plate, a crushing knife is fixedly connected to the rotating column above the filter plate, and a spiral feeding paddle is fixedly connected to the side wall of the rotating column below the filter plate.

[0015] As a preferred technical solution of the present invention, the transmission assembly includes a mounting motor fixedly arranged on the top of the transmission housing, the output shaft of the mounting motor extends into the transmission housing, and the end is fixedly connected to the driving gear, the rotating column extends into the transmission housing, and a transmission gear is arranged at the end, the transmission gear is meshed with the driving gear, a driving wheel is fixedly sleeved on the output shaft of the driving motor above the driving gear, and the mixing column extends into the transmission housing and is transmission-connected to the driving wheel.

[0016] The construction method of the sunken concrete mixing plant includes the following steps:

[0017] S1. First, select the construction location, then determine the excavation according to the actual size of the mixing plant, use a tamping machine to compact the foundation, and then use slope protection plates and foundation plates to reinforce the inner wall and foundation of the excavated tunnel;

[0018] S2. The fixing frame is fixedly placed on the base plate, and then the feeding bin is installed on the top of the fixing frame to separate the feeding bin from the tunnel ground. At the same time, the mixing drum is installed correspondingly to the feeding bin, and then the batching mechanism is installed correspondingly at the position above the feeding bin;

[0019] S3. The operator manually adjusts the batching mechanism according to the type of concrete actually required, determines the ratio of various raw materials, and then controls the electric lifting column to drive the installation plate down to complete the installation. During the construction process, the operator can adjust the batching efficiency through the batching mechanism according to the actual amount of concrete required.

[0020] The present invention has the following advantages: before carrying out the concrete mixing operation, the operator first rotates the adjustment rod according to the proportion of each raw material to drive the adjustment block to move up and down, adjust the volume above the metering cylinder, and then places the various raw materials that need to be mixed into the batching cylinder through the material guide trough. Under the action of the installed motor, the rotating column rotates to drive the crushing knife to crush the raw materials. At the same time, under the action of the spiral feeding paddle, each raw material is evenly fed into the valve cylinder. At the same time, under the action of the air guide pump, the dust and smoke brought by the raw materials are timely absorbed through the air guide cylinder and the dust filter cylinder. , to ensure the air quality around the construction site. At the same time, the gas discharged by the air pump is sent into the air duct. Under the action of the driving motor, the air duct drives the air outlet pipe to rotate. During the rotation, the touch rod under the air outlet pipe first contacts the stop rod. Under the reaction force of the stop rod, the touch rod contacts the switch button of the sensing rod, and the sensing rod is turned on, thereby controlling the driving motor to stop. At the same time, the air outlet pipe at this time just corresponds to the air inlet pipe seal, and the gas generated by the air pump is continuously sent into the metering cylinder. At the moment the gas enters the installation shell, the piston block drives the valve rod to move horizontally, and the valve The valve opening on the door rod corresponds to the valve cylinder, and the concrete raw materials begin to fall. With the continuous inflation of the metering cylinder, when the air pressure in the metering cylinder reaches the standard value of the air pressure sensing head, the air pressure sensing head will control the electric adjustment column. The electric adjustment column extends to drive the baffle rod on one side of the movable arm to move away from the touch rod. When separated from the touch rod, the touch rod resets and rotates under the action of the torsion spring and separates from the sensing rod. At this time, the driving motor continues to control the rotation of the air duct, and the air outlet pipe and the air inlet pipe on the side wall of the air duct are separated, and the air in the metering cylinder is released. The valve rod is reset under the action, and the material is no longer discharged. The touch rod rotates to the next station to control the discharge. In the above process, since the operator has adjusted the position of the adjustment block in each metering cylinder in advance, when the air duct pumps air into the metering cylinder, the time taken for each metering cylinder to reach the standard air pressure value that triggers the air pressure sensor head is different. In this case, since the discharge rate of the batching cylinder is the same, the corresponding raw materials delivered can reach the corresponding proportions at different times, thereby ensuring that the proportion of each raw material is very accurate and the quality of subsequent concrete is higher.

[0021] At the same time, if the operator needs to improve the concrete mixing efficiency, he only needs to increase the output efficiency of the installed motor, that is, improve the feeding efficiency of the batching barrel. At the same time, under the action of the driving wheel, the mixing efficiency can be improved synchronously, and the operation coordination effect of the whole device is better. At the same time, when the device is actually used, the batching mechanism can be pulled out by adjusting the electric lifting column for maintenance or renovation. Compared with the traditional fixed-installed mixing station, it is more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure diagram of the sunken concrete mixing plant Figure 1 .

[0023] Figure 2 The structure diagram of the sunken concrete mixing plant Figure 2 .

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of a sunken concrete mixing station.

[0025] Figure 4 It is a schematic diagram of the overall structure of the batching mechanism in a sunken concrete mixing plant.

[0026] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of A.

[0027] Figure 6 It is a schematic diagram of the top view of the batching mechanism in a sunken concrete mixing plant.

[0028] Figure 7 This is a schematic diagram of the structure of the batching mechanism in a sunken concrete mixing plant from an upward perspective.

[0029] Figure 8 It is a schematic diagram of the structure of the valve assembly in the sunken concrete mixing station.

[0030] Fig. 9 It is a schematic diagram of the cross-sectional structure of the batching barrel in a sunken concrete mixing station.

[0031] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure of B.

[0032] In the figure: 1. Feeding bin; 2. Fixing frame; 3. Feeding motor; 4. Mixing cylinder; 5. Material guide pipe; 6. Mounting cover; 7. Mixing column; 8. Mounting rod; 9. Electric lifting column; 10. Touch rod; 11. Transmission housing; 12. Feeding port; 13. Mounting motor; 14. Material guide bin; 15. Material guide trough; 16. Mounting plate; 17. Mounting plate; 18. Material barrel; 19. Valve barrel; 20. Material receiving bin; 21. Rotating column; 22. Air guide pump; 23. Air guide cylinder; 24. Dust filter cylinder; 25. Air guide pipe; 26. Driving motor; 27. Driving box; 28. Air outlet pipe; 29. Sensing rod; 30. Torsion spring; 31. Sensing column; 32. Fixed sleeve; 33. Valve rod; 34. Valve mouth; 35. Movable arm; 36. Stop rod; 37. Adjusting rod; 38. Adjusting block; 39. Air inlet pipe; 40. Measuring cylinder; 41. Screw feeding paddle; 42. Filter plate; 43. Crushing knife; 44. Mounting shell; 45. Piston block; 46. Electric adjusting column; 47. Partition; 48. Air pressure sensing head; 49. Elastic part; 50. Through port; 51. Driving wheel; 52. Driving gear; 53. Transmission gear; 54. Agitator; 55. Belt feeder. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0034] See also Figure 1-Figure 10 As an embodiment of the present invention, a sunken concrete mixing station includes a feeding bin 1, and also includes: a belt feeder 55 arranged in the feeding bin 1, the side wall of the feeding bin 1 is fixedly connected to a feeding motor 3, the output shaft of the feeding motor 3 is fixedly connected to the end of the rotating shaft of the driving roller of the belt feeder 55, the bottom of the feeding bin 1 is fixedly connected to a fixing frame 2, a mixing drum 4 is arranged on one side of the feeding bin 1, the mixing drum 4 is communicated with the inside of the feeding bin 1, a mixing assembly is arranged in the mixing drum 4, a material guide pipe 5 is arranged at the bottom of the mixing drum 4, and the material guide pipe 5 extends upward. When actually used, the mixed concrete is taken out through the material guide pipe 5, and a material receiving bin 20 is fixedly arranged on the top of the feeding bin 1;

[0035] The batching mechanism arranged above the receiving bin 20 includes a mounting plate 17, one side of the mounting plate 17 is fixedly connected to the mounting plate 16, an electric lifting column 9 is arranged between the mounting plate 16 and the feeding bin 1, the bottom of the electric lifting column 9 is fixedly connected to the feeding bin 1, the telescopic end of the electric lifting column 9 is fixedly connected to the mounting plate 16, the mounting plate 17 is fixedly connected to the guide bin 14, a plurality of guide bins 14 are arranged, the guide bin 14 extends to the bottom of the mounting plate 16, and the bottom is fixedly connected to the batching barrel 18, the bottom of the batching barrel 18 is fixedly connected to the valve barrel 19, the valve barrel 19 is connected to the batching barrel 18, the valve assembly is arranged on the valve barrel 19, and the mounting between the batching barrels 18 is fixedly connected to the mounting plate 17. An air pump 22 is fixedly arranged on the top of the mounting plate 17, and a dust filter assembly is arranged at the air inlet end of the air pump 22, and the dust filter assembly is arranged on the inner wall of the material guide bin 14. A driving assembly is arranged at the bottom of the mounting plate 17 below the air pump 22, and an air duct 25 is arranged at the output end of the driving assembly, and the air duct 25 is connected to the air outlet end of the air pump 22. A sensing assembly is arranged on the air duct 25 on one side of the valve assembly, and the sensing assembly controls the start and stop of the driving assembly. A material leveling assembly is arranged in the batching barrel 18, a transmission shell 11 is arranged above the mounting plate 16, and a transmission assembly is arranged in the transmission shell 11, wherein the electric lifting column 9 can also use other types of lifting equipment that can realize the lifting function.

[0036] During the actual operation of this embodiment, the driving component can be controlled by the sensing component to drive the air guide duct 25 to rotate, thereby contacting the valve component, and correspondingly controlling the opening time of each batching barrel 18, thereby ensuring that each material has a corresponding proportion of quality, thereby ensuring that the proportion of each raw material is very accurate, and thereby producing a better quality of concrete;

[0037] At the same time, if the operator needs to improve the concrete mixing efficiency, he only needs to improve the output efficiency of the transmission component, that is, improve the feeding efficiency of the batching barrel 18. At the same time, the mixing efficiency can be improved synchronously under the action of the transmission component, and the operation coordination effect of the whole device is better. At the same time, when the device is actually used, the batching mechanism can be pulled out by adjusting the electric lifting column 9 for maintenance or renovation, and the actual use is more flexible.

[0038] See also Figure 1-Figure 10 As another embodiment of the present invention, the mixing assembly includes a mounting rod 8 fixedly penetrated on the mounting plate 16, the top of the mounting rod 8 is fixedly connected to the transmission housing 11, the bottom of the mounting rod 8 is fixedly connected to the mounting cover 6, the mounting cover 6 is rotatably penetrated by a mixing column 7, and the side wall of the mixing column 7 below the mounting cover 6 is fixedly connected to a stirring paddle 54. In actual use, the rotating column 21 can drive the stirring paddle 54 to rotate to achieve mixing of concrete.

[0039] The valve assembly includes a valve stem 33 that slides through the valve cylinder 19, and a valve port 34 is provided on the valve stem 33. The bottom of the batching cylinder 18 on one side of the valve cylinder 19 is fixedly connected to a metering cylinder 40, and the metering cylinder 40 is fixedly connected to a mounting shell 44 near the valve cylinder 19. A partition 47 is fixedly connected inside the mounting shell 44, and a piston block 45 is slidably connected inside the mounting shell 44 above the partition 47. One side of the piston block 45 is fixedly connected to the valve stem 33, and the side of the piston block 45 away from the valve stem 33 is fixedly connected to an elastic member 49, and one side of the elastic member 49 is fixedly connected to the batching cylinder 18, wherein the elastic member 49 can be a spring with telescopic properties or an elastic metal sheet, etc., and when the valve stem 33 is in a natural state, the valve port 34 thereon is separated from the position of the material discharge channel of the valve cylinder 19, that is, the valve cylinder 19 is closed and material discharge is impossible.

[0040] An electric adjustment column 46 is fixedly connected to the mounting shell 44 below the partition 47, and an air pressure sensing head 48 is arranged on one side of the electric adjustment column 46. The telescopic end of the electric adjustment column 46 extends to the outside of the mounting shell 44, and the end is fixedly connected to a movable arm 35. A baffle 36 is fixedly arranged at one end of the movable arm 35 close to the air duct 25. Openings 50 are provided on the side walls of the batching barrel 18 on the upper and lower sides of the partition 47, and the air pressure sensing head 48 detects the pressure and then controls the telescopic movement of the electric adjustment column 46.

[0041] The metering cylinder 40 is fixedly connected to the air inlet pipe 39 on one side close to the air guide pipe 25, and an adjusting rod 37 is threadedly provided through the bottom wall of the metering cylinder 40. A handle is provided at the bottom end of the adjusting rod 37, and an adjusting block 38 is provided on the adjusting rod 37. The adjusting block 38 is slidably connected to the metering cylinder 40, and the top of the adjusting rod 37 is rotatably connected to the adjusting block 38. The operator rotates the adjusting rod 37 to drive the adjusting block 38 to move according to the required quality of each raw material, so as to adjust the space in the metering cylinder 40 above the adjusting block 38. In this case, if a constant inflation rate is maintained in the metering cylinder 40, then different volumes of metering cylinders 40 will require different inflation times to achieve the same pressure.

[0042] The dust filter assembly includes a dust filter cylinder 24 fixedly arranged on the inner wall of the material guide bin 14, the air inlet end of the air pump 22 is fixedly connected to the air guide cylinder 23, and the air guide cylinder 23 is fixedly connected to the dust filter cylinder 24. The driving assembly includes a driving box 27 fixedly arranged on the bottom of the mounting plate 17, and one side of the driving box 27 is fixedly connected to the driving motor 26. The output shaft of the driving motor 26 extends into the driving box 27 and is transmission-connected to the air guide duct 25. Under the action of the driving motor 26, the air guide duct 25 can be driven to rotate.

[0043] The sensing component includes an air outlet pipe 28 fixedly arranged on one side of the air duct 25, the air outlet pipe 28 is communicated with the inside of the air duct 25, the bottom of one side of the air outlet pipe 28 is fixedly connected to a sensing rod 29, a sensing button is arranged on the side wall of the sensing rod 29, the bottom of the air outlet pipe 28 on one side of the sensing rod 29 is rotatably connected to a sensing column 31, a fixing sleeve 32 is fixedly sleeved on the sensing column 31, a torsion spring 30 is sleeved on the sensing column 31 above the fixing sleeve 32, two ends of the torsion spring 30 are respectively fixedly connected to the fixing sleeve 32 and the top of the sensing column 31, one side of the bottom of the sensing column 31 is fixedly connected to a touch rod 10, the touch rod 10 corresponds to the sensing rod 29, and in a natural state, the touch rod 10 and the sensing rod 29 are in a separated state.

[0044] The material leveling assembly includes a filter plate 42 fixedly arranged in the dispensing barrel 18, a discharge port 12 is provided on the filter plate 42, a rotating column 21 is rotatably arranged on the filter plate 42, a crushing knife 43 is fixedly connected to the rotating column 21 above the filter plate 42, and a spiral feeding paddle 41 is fixedly connected to the side wall of the rotating column 21 below the filter plate 42. During actual use, the rotating column 21 drives the crushing knife 43 to crush the material, and at the same time, the spiral feeding paddle 41 can be used to feed the material at a uniform speed.

[0045] The transmission assembly includes a mounting motor 13 fixedly arranged on the top of the transmission housing 11, the output shaft of the mounting motor 13 extends into the transmission housing 11, and the end portion is fixedly connected to the driving gear 52, the rotating column 21 extends into the transmission housing 11, and a transmission gear 53 is arranged at the end portion, the transmission gear 53 is meshed with the driving gear 52, a driving wheel 51 is arranged on the fixed sleeve 32 on the output shaft of the driving motor 26 above the driving gear 52, the mixing column 7 extends into the transmission housing 11, and is connected to the driving wheel 51 through a belt drive; under the action of the transmission assembly, the device can adjust the batching efficiency according to the actual usage conditions, and correspondingly improve the mixing efficiency.

[0046] During the implementation of the present invention, before the concrete mixing operation is carried out, the operator first rotates the adjustment rod 37 according to the proportion of each raw material to drive the adjustment block 38 to move up and down, adjust the volume above the metering cylinder 40, and then places the various raw materials that need to be mixed into the batching cylinder 18 through the guide trough 15. Under the action of the installation motor 13, the rotating column 21 rotates to drive the crushing knife 43 to crush the raw materials. At the same time, under the action of the spiral feeding paddle 41, each raw material is evenly fed into the valve cylinder 19. At the same time, under the action of the air guide pump 22, the dust and smoke brought by the raw materials are timely adsorbed through the air guide cylinder 23 and the dust filter cylinder 24 to ensure that the surrounding area of ​​the construction site is clean. The air quality of the surrounding air is improved, and the gas discharged by the air pump 22 is sent into the air guide pipe 25. Under the action of the driving motor 26, the air guide pipe 25 drives the air outlet pipe 28 to rotate. During the rotation, the touch rod 10 below the air outlet pipe 28 first contacts the blocking rod 36. Under the reaction force of the blocking rod 36, the touch rod 10 contacts the switch button of the sensing rod 29, and the sensing rod 29 is turned on, thereby controlling the driving motor 26 to stop. At the same time, the air outlet pipe 28 at this time just corresponds to the air inlet pipe 39 seal, and the gas generated by the air pump 22 is continuously sent into the metering cylinder 40. At the moment when the gas enters the mounting shell 44, the piston block 45 drives the valve rod 33 to move horizontally, and the valve The valve opening 34 on the gate rod 33 corresponds to the valve cylinder 19, and the concrete raw material begins to fall. As the metering cylinder 40 is continuously inflated, when the air pressure in the metering cylinder 40 reaches the standard value of the air pressure sensing head 48, the air pressure sensing head 48 will control the electric adjustment column 46, and the electric adjustment column 46 extends to drive the blocking rod 36 on one side of the movable arm 35 to move away from the touch rod 10. When separated from the touch rod 10, the touch rod 10 resets and rotates under the action of the torsion spring 30 and separates from the sensing rod 29. At this time, the driving motor 26 continues to control the rotation of the air guide 25, which is the separation of the air outlet 28 and the air inlet 39 on the side wall of the air guide 25. Then the air in the metering cylinder 40 When the air is released, the valve rod 33 is reset under the action of the elastic member 49, and the material is no longer discharged. The touch rod 10 rotates to the next station to control the discharge. In the above process, since the operator has adjusted the position of the adjustment block 38 in each metering cylinder 40 in advance, when the air duct 25 pumps air into the metering cylinder 40, the time taken for each metering cylinder 40 to reach the standard air pressure value that triggers the air pressure sensor head 48 is different. In this case, since the material discharge rate of the batching barrel 18 is the same, the corresponding raw materials delivered can be guaranteed to reach the corresponding proportions within different time periods, thereby ensuring that the proportion of each raw material is very accurate and the quality of subsequent concrete is higher.

[0047] At the same time, if the operator needs to improve the concrete mixing efficiency, he only needs to improve the output efficiency of the installed motor 13, that is, improve the feeding efficiency of the batching barrel 18. At the same time, under the action of the driving wheel 51, the mixing efficiency can be improved synchronously, and the operation coordination effect of the whole device is better. At the same time, when the device is actually used, the batching mechanism can be pulled out by adjusting the electric lifting column 9 for maintenance or renovation. Compared with the traditional fixed-installed mixing station, it is more flexible to use.

[0048] As another embodiment of the present invention, a construction method of a sunken concrete mixing plant includes the following steps:

[0049] S1. First, select the construction location, then determine the excavation according to the actual size of the mixing plant, use a tamping machine to compact the foundation, and then use slope protection plates and foundation plates to reinforce the inner wall and foundation of the excavated tunnel;

[0050] S2. The fixing frame 2 is fixedly placed on the base plate, and then the feeding bin 1 is installed on the top of the fixing frame 2 to separate the feeding bin 1 from the tunnel ground. At the same time, the mixing drum 4 is installed correspondingly to the feeding bin 1, and then the batching mechanism is installed correspondingly at the position above the feeding bin 1;

[0051] S3. The operator manually adjusts the batching mechanism according to the type of concrete actually required, determines the ratio of various raw materials, and then controls the electric lifting column 9 to drive the mounting plate 16 to move downward to complete the installation. During the construction process, the operator can adjust the batching efficiency through the batching mechanism according to the actual amount of concrete required.

[0052] Through the above-mentioned construction method, when it is actually used, placing the mixing station in this way reduces the time of tunnel excavation and improves the construction efficiency compared with the installation and construction of the traditional mixing station. At the same time, the actual installation of the device is relatively convenient. In actual use, the operator does not need to carry out a long installation work in a narrow tunnel. At the same time, during the construction interval, the device can adjust the height of the batching structure through the electric lifting column 9, and the operator can perform maintenance and repairs directly on the ground, which is very convenient to operate.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sunken concrete mixing station, comprising a feeding silo (1), characterized in that: Also includes: A belt feeder (55) is arranged in the feeding bin (1), the bottom of the feeding bin (1) is fixedly connected to a fixing frame (2), a mixing cylinder (4) is arranged on one side of the feeding bin (1), a mixing assembly is arranged in the mixing cylinder (4), and a material receiving bin (20) is arranged on the top of the feeding bin (1); The batching mechanism is arranged above the material receiving bin (20), comprising a mounting plate (17), one side of the mounting plate (17) is fixedly connected to the mounting plate (16), an electric lifting column (9) is arranged between the mounting plate (16) and the feeding bin (1), the mounting plate (17) is fixedly connected to the material guide bin (14), a plurality of material guide bins (14) are arranged, the material guide bin (14) extends to the bottom of the mounting plate (16), and the bottom of the material guide bin (14) is fixedly connected to the batching barrel (18), the bottom of the batching barrel (18) is fixedly connected to the valve barrel (19), a valve assembly is arranged on the valve barrel (19), and the mounting plate (17) between the material guide bins (18) An air pump (22) is arranged on the top, a dust filter assembly is arranged at the air inlet end of the air pump (22), and the dust filter assembly is arranged on the inner wall of the material guide bin (14). A driving assembly is arranged at the bottom of the mounting plate (17) below the air pump (22), an air guide pipe (25) is arranged at the output end of the driving assembly, and the air guide pipe (25) is connected to the air pump (22). A sensing assembly is arranged on the air guide pipe (25) on one side of the valve assembly, and the sensing assembly controls the start and stop of the driving assembly. A material mixing assembly is arranged in the material mixing barrel (18), and a transmission shell (11) is arranged above the mounting plate (16), and a transmission assembly is arranged in the transmission shell (11).

2. The sunken concrete mixing station according to claim 1, characterized in that: The mixing assembly comprises a mounting rod (8) fixedly penetrating the mounting plate (16), the bottom of the mounting rod (8) being fixedly connected to the mounting cover (6), a mixing column (7) being rotatably penetrating the mounting cover (6), and a side wall of the mixing column (7) below the mounting cover (6) being fixedly connected to a stirring paddle (54).

3. The sunken concrete mixing station according to claim 1, characterized in that: The valve assembly comprises a valve rod (33) which is slidably penetrated and arranged on the valve cylinder (19); a valve opening (34) is provided on the valve rod (33); the bottom of the batching cylinder (18) on one side of the valve cylinder (19) is fixedly connected to a metering cylinder (40); the metering cylinder (40) is fixedly connected to a mounting shell (44) on the side close to the valve cylinder (19); a partition (47) is fixedly connected inside the mounting shell (44); a piston block (45) is slidably connected inside the mounting shell (44) above the partition (47); one side of the piston block (45) is fixedly connected to the valve rod (33); the side of the piston block (45) away from the valve rod (33) is fixedly connected to an elastic member (49); and one side of the elastic member (49) is fixedly connected to the batching cylinder (18).

4. The sunken concrete mixing station according to claim 3, characterized in that: An electric adjustment column (46) is fixedly connected to the mounting shell (44) below the partition (47), and an air pressure sensor (48) is arranged on one side of the electric adjustment column (46). The telescopic end of the electric adjustment column (46) extends to the outside of the mounting shell (44), and the end is fixedly connected to a movable arm (35). A stop rod (36) is arranged at one end of the movable arm (35) close to the air guide pipe (25), and openings (50) are provided on the side walls of the batching barrel (18) on the upper and lower sides of the partition (47).

5. The sunken concrete mixing station according to claim 4, characterized in that: The metering cylinder (40) is fixedly connected to the air inlet pipe (39) at one side close to the air guide pipe (25); an adjusting rod (37) is provided through a thread on the bottom wall of the metering cylinder (40); a handle is provided at the bottom end of the adjusting rod (37); an adjusting block (38) is provided on the adjusting rod (37); the adjusting block (38) is slidably connected to the metering cylinder (40); and the top end of the adjusting rod (37) is rotatably connected to the adjusting block (38).

6. The sunken concrete mixing station according to claim 1, characterized in that: The dust filter assembly comprises a dust filter cylinder (24) fixedly arranged on the inner wall of the material guide bin (14); the air inlet end of the air guide pump (22) is fixedly connected to the air guide cylinder (23); the air guide cylinder (23) is fixedly connected to the dust filter cylinder (24); the drive assembly comprises a drive box (27) fixedly arranged on the bottom of the mounting plate (17); one side of the drive box (27) is fixedly connected to a drive motor (26); an output shaft of the drive motor (26) extends into the drive box (27) and is transmission-connected to the air guide pipe (25).

7. The sunken concrete mixing plant according to claim 1, characterized in that: The sensing component comprises an air outlet pipe (28) fixedly arranged on one side of the air guide pipe (25); the bottom of one side of the air outlet pipe (28) is fixedly connected to a sensing rod (29); a sensing button is arranged on the side wall of the sensing rod (29); the bottom of the air outlet pipe (28) on one side of the sensing rod (29) is rotatably connected to a sensing column (31); a fixing sleeve (32) is fixedly sleeved on the sensing column (31); a torsion spring (30) is sleeved on the sensing column (31) above the fixing sleeve (32); one side of the bottom of the sensing column (31) is fixedly connected to a touch rod (10); the touch rod (10) corresponds to the sensing rod (29).

8. The sunken concrete mixing station according to claim 2, characterized in that: The material leveling assembly comprises a filter plate (42) fixedly arranged in a material dispensing barrel (18), a rotating column (21) rotatably penetrating the filter plate (42), a crushing knife (43) being fixedly connected to the rotating column (21) above the filter plate (42), and a spiral feeding paddle (41) being fixedly connected to the side wall of the rotating column (21) below the filter plate (42).

9. The sunken concrete mixing plant according to claim 8, characterized in that: The transmission assembly comprises a mounting motor (13) fixedly arranged on the top of a transmission housing (11); the output shaft of the mounting motor (13) extends into the transmission housing (11) and the end thereof is fixedly connected to a driving gear (52); the rotating column (21) extends into the transmission housing (11) and a transmission gear (53) is arranged at the end thereof, the transmission gear (53) meshes with the driving gear (52); a driving wheel (51) is arranged on a fixed sleeve (32) on the output shaft of the driving motor (26) above the driving gear (52); the mixing column (7) extends into the transmission housing (11) and is transmission-connected to the driving wheel (51).

10. The construction method of a sunken concrete mixing station according to claim 1, characterized in that: The following steps are involved: S1. First, select the construction location, then determine the excavation according to the actual size of the mixing plant, use a tamping machine to compact the foundation, and then use slope protection plates and foundation plates to reinforce the inner wall and foundation of the excavated tunnel; S2, the fixing frame (2) is fixedly placed on the base plate, and then the feeding bin (1) is installed on the top of the fixing frame (2), so that the feeding bin (1) is separated from the tunnel ground, and at the same time, the mixing drum (4) is installed correspondingly to the feeding bin (1), and then the batching mechanism is installed correspondingly at the position above the feeding bin (1); S3. The operator manually adjusts the batching mechanism according to the type of concrete actually required to determine the ratio of various raw materials, and then controls the electric lifting column (9) to drive the installation plate (16) to move downward to complete the installation. During the construction process, the operator can adjust the batching efficiency through the batching mechanism according to the actual amount of concrete required.

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