Aggregate intermediate bin of mixing plant

Abstract

The aggregate intermediate bin comprises a bin body and a dust collecting unit, a feeding port is formed in the upper portion of the bin body and connected with the output end of a conveying belt, a discharging port is formed in the bottom of the bin body, and the dust collecting unit communicates with the top of the bin body. The dust collection unit comprises a dust suction pipe, a dust remover, a dust return pipe and a pneumatic conveying pipe, one end of the dust suction pipe is communicated with the top of the bin body through a first fan, the other end of the dust suction pipe is communicated with the dust remover, the discharging end of the dust remover is communicated with one end of the dust return pipe, and the other end of the dust return pipe is communicated with the side wall of the upper portion of the bin body. One end of the pneumatic conveying pipe is connected with the output end of the air compressor, and the other end of the pneumatic conveying pipe is communicated with the dust returning pipe. A dust suppression unit is arranged at the joint of the top of the bin body and the output end of the conveying belt. And efficient inhibition and collection of dust in the operation process of the aggregate intermediate bin of the mixing plant are realized.

Description

Technical Field

[0001] The present application relates to the technical field of concrete mixing, and in particular to an aggregate intermediate bin of a mixing station. Background Art

[0002] Concrete is a general term for engineering composite materials that are cemented into a whole by cementitious materials. Concrete usually refers to cement as a cementitious material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion, and then mixed to obtain cement concrete. Concrete is usually mixed by a concrete mixing station, and then transported to the destination for use.

[0003] The aggregate intermediate bin of the mixing station is an indispensable device in the concrete production process, mainly used to temporarily store and buffer raw materials such as sand and gravel. After the sand and gravel aggregates are weighed in the batching machine according to the proportion required by the concrete, they are transported to the aggregate intermediate bin by the inclined belt conveyor for temporary storage. When the main mixer unloads a batch of materials, the materials in the aggregate intermediate bin are unloaded into the main mixer for a new round of concrete production, ensuring the continuity and stability of concrete production.

[0004] When sand and gravel aggregates enter the intermediate bin, due to the certain height of the intermediate bin, dust is easily generated and diffused during the falling process of the aggregates, causing pollution to the intermediate bin and the surrounding environment. Utility Model Content

[0005] The present application provides an aggregate intermediate bin of a mixing station to solve the above-mentioned problems mentioned in the background technology.

[0006] The present application provides an aggregate intermediate bin of a mixing station, comprising: a bin body and a dust collecting unit, wherein a feed port is provided at the top of the bin body, the feed port is connected to the output end of a conveyor belt, a discharge port is provided at the bottom of the bin body, and the dust collecting unit is connected to the top of the bin body.

[0007] The dust collection unit includes a dust suction pipe, a dust collector, a dust return pipe and a pneumatic conveying pipe. One end of the dust suction pipe is connected to the top of the bin body through a first fan, the other end of the dust suction pipe is connected to the dust collector, the discharge end of the dust collector is connected to one end of the dust return pipe, the other end of the dust return pipe is connected to the upper side wall of the bin body, one end of the pneumatic conveying pipe is connected to the output end of the air compressor, and the other end of the pneumatic conveying pipe is connected to the dust return pipe.

[0008] A dust suppression unit is arranged at the connection between the top of the bin body and the output end of the conveyor belt.

[0009] Optionally, the dust suppression unit includes an atomizer, a water mist box, a venturi tube and a second fan;

[0010] The atomizer inlet is connected to a water pipe, the atomizer outlet is connected to a water mist box, the water mist box outlet is connected to a suction port of a venturi tube, the nozzle of the venturi tube is connected to a second fan, and the outlet end of the diffusion section of the venturi tube extends into the interior of the bin body.

[0011] A connecting plate is arranged on one side of the top of the bin body close to the output end of the conveyor belt, and the venturi tube is connected to the connecting plate through a connecting rod.

[0012] Optionally, a venturi tube moving assembly is provided between the connecting rod and the connecting plate, and the venturi tube moving assembly includes a fixed plate, a fixed block, a screw rod, a bearing and a motor.

[0013] The end of the connecting plate away from the bin body is vertically connected to a fixed plate, and fixed blocks are respectively provided at both ends of the fixed plate along the length direction. The two ends of the screw rod are connected to the fixed blocks through bearings, and a screw nut is provided on the outer periphery of the screw rod. The output end of the motor is fixedly connected to one end of the screw rod, one end of the connecting rod is connected to the venturi tube, and the other end of the connecting rod is connected to the screw nut.

[0014] Optionally, a water mist regulating valve is provided at the outlet of the water mist box.

[0015] Optionally, a dust concentration sensor is provided on the top of the bin body.

[0016] Optionally, a filter screen is provided inside the connection between the dust suction pipe and the top of the bin body.

[0017] Optionally, a humidity detector is provided on the top of the warehouse body.

[0018] The aggregate intermediate bin of the mixing station provided in the present application realizes the suppression and collection of dust during the operation of the aggregate intermediate bin of the mixing station, and has the following beneficial effects compared with the prior art:

[0019] (1) By setting up a dust collection unit, not only the environmental pollution problem caused by the escape of dust in the aggregate intermediate of the mixing station is solved, but also the waste of aggregate is avoided and the production cost is saved. By using an air compressor to pressurize the air, and then connecting the dust return pipe through a pneumatic conveying pipe, the collected dust can be smoothly transported back to the bin body, avoiding the blockage of dust in the dust return pipe. At the same time, the use of compressed air as the power gas not only ensures the smooth operation of the dust collection unit, but also is low-cost and easy to implement. By setting up a dust suppression unit at the feed inlet, the dust phenomenon in the aggregate intermediate bin of the mixing station during operation is further reduced, the dust content in the surrounding environment of the aggregate intermediate bin of the mixing station is increased, and it has a good environmental benefit.

[0020] (2) The dust at the feed port is further suppressed by setting a dust suppression unit. The dust suppression unit includes an atomizer, a water mist box, a venturi tube and a second fan. The second fan blows air from the nozzle of the venturi tube into the venturi tube, and at the same time, the water mist in the atomizer is sucked in. The water mist is mixed with the air to obtain an air-water mist mixture, which is accelerated by the venturi tube and sprayed into the interior of the bin from the outlet of the diffusion section of the venturi tube. The air-water mist mixture has a certain kinetic energy when it is output from the venturi tube. Therefore, when the air-water mist mixture enters the feed port, it generates thrust on the dust at the feed port and causes the dust at the feed port to enter the bin, thereby preventing the dust at the feed port and the surrounding from escaping, thereby preventing the environment around the aggregate intermediate bin of the mixing station from being polluted by dust, which is beneficial to the cleanliness of the surrounding air.

[0021] (3) By setting a venturi tube moving component, the venturi tube is moved, so that the venturi tube suppresses the dust at the feed port while moving, thereby increasing the dust suppression range of the dust suppression unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the structure of an aggregate intermediate bin of a mixing station provided in one embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of an aggregate intermediate bin of a mixing station provided in another embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of a dust suppression unit provided in one embodiment of the present application;

[0026] Figure 4 A schematic diagram of the structure of a venturi tube moving assembly provided in one embodiment of the present application;

[0027] Figure 5 A schematic structural diagram of a dust suppression unit provided in another embodiment of the present application;

[0028] Figure 6 A schematic structural diagram of a dust suppression unit provided in yet another embodiment of the present application;

[0029] Description of reference numerals:

[0030] 1: warehouse body, 3: dust suppression unit, 110: feed port, 120: conveyor belt, 130: discharge port, 140: dust concentration sensor, 150: humidity detector, 210: dust suction pipe, 211: first fan, 212: filter, 220: dust collector, 230: dust return pipe, 240: pneumatic conveying pipe, 250: air compressor, 310: atomizer, 320: water mist box, 321: water mist regulating valve, 330: venturi tube, 340: second fan, 350: connecting plate, 360: connecting rod, 410: fixing plate, 420: fixing block, 430: screw rod, 431: screw rod nut, 432: positioning light rod, 440: bearing, 450: motor, 3301: suction port, 3302: nozzle, 3303: diffusion section. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0032] like Figure 1 As shown, the present application provides an intermediate aggregate silo of a mixing station, comprising: a silo body 1 and a dust collecting unit, a feed port 110 is provided at the upper portion of the silo body 1, the feed port 110 is connected to the output end of a conveyor belt 120, a discharge port 130 is provided at the bottom of the silo body 1, and the dust collecting unit is connected to the top of the silo body 1.

[0033] The dust collection unit includes a dust suction pipe 210, a dust collector 220, a dust return pipe 230 and a pneumatic conveying pipe 240. One end of the dust suction pipe 210 is connected to the top of the warehouse body 1 through the first fan 211, and the other end of the dust suction pipe 210 is connected to the dust collector 220. The discharge end of the dust collector 220 is connected to one end of the dust return pipe 230, and the other end of the dust return pipe 230 is connected to the upper side wall of the warehouse body 1. One end of the pneumatic conveying pipe 240 is connected to the output end of the air compressor 250, and the other end of the pneumatic conveying pipe 240 is connected to the dust return pipe 230.

[0034] A dust suppression unit 3 is provided at the connection between the top of the bin body 1 and the output end of the conveyor belt 120 .

[0035] Specifically, the aggregate intermediate bin of the mixing station is arranged above the mixer to provide space for placing the aggregates used in concrete production, and after the mixer is unloaded, the aggregates are transported to the mixer for mixing to obtain concrete.

[0036] The intermediate silo of the aggregate in the mixing station will generate dust during the feeding process, so it is necessary to remove the dust to avoid pollution of the surrounding environment. The intermediate silo of the aggregate in the mixing station includes a silo body 1 and a dust collection unit. The aggregate is input into the silo body 1 from the feed port 110 through the conveyor belt 120 for temporary storage. When unloading, it is output through the discharge port 130 at the bottom of the silo body 1. During the feeding process in the silo body 1, the dust generated is collected and processed by the dust collection unit. The dust collection unit includes a dust suction pipe 210, a dust collector 220, a dust return pipe 230 and a pneumatic conveying pipe 240. One end of the dust suction pipe 210 is connected to the top of the silo body 1 through the first fan 211. The first fan 211 provides negative pressure to suck the dust in the silo 1 into the dust suction pipe 210, and the dust is transported to the dust collector 220 through the dust suction pipe 210. The dust collector 220 is used to collect the dust, and the clean air is discharged from the top of the dust collector 220. The dust is collected in the ash hopper at the bottom of the dust collector 220 and finally transported back to the silo 1 through the dust return pipe 230. The dust is collected and returned to the silo 1, which not only solves the environmental pollution problem caused by dust escape, but also avoids the waste of aggregates and saves production costs. The dust return pipe 230 is also connected to a pneumatic conveying pipe 240, and the pneumatic conveying pipe 240 is connected to an air compressor 250. After the air compressor 250 pressurizes the air, it is transported to the dust return pipe 230 through the pneumatic conveying pipe 240, providing power for the dust transportation in the dust return pipe 230, so that the collected dust can be smoothly transported back to the bin body 1, avoiding dust clogging in the dust return pipe 230. At the same time, compressed air is used as the power gas, which not only ensures the smooth operation of the dust collection unit, but also has low cost and is easy to implement.

[0037] The feed port 110 of the silo 1 is connected to the output end of the conveyor belt 120. During the unloading process of aggregate, dust is easily generated due to the height difference and is dispersed from the feed port 110. By providing a dust suppression unit 3 at the feed port 110, the dust escape from the feed port 110 can be significantly suppressed, further reducing the dust phenomenon in the aggregate intermediate silo of the mixing station during operation, increasing the dust content in the surrounding environment of the aggregate intermediate silo of the mixing station, and having good environmental benefits.

[0038] The present application realizes the suppression and collection of dust during the operation of the intermediate bin of the aggregate in the mixing station through the above scheme. By setting up a dust collection unit, not only the environmental pollution problem caused by the escape of dust in the intermediate bin of the aggregate in the mixing station is solved, but also the waste of aggregate is avoided and the production cost is saved. By using an air compressor to pressurize the air, and then connecting the dust return pipe through a pneumatic conveying pipe, the collected dust can be smoothly transported back to the bin body, avoiding the clogging of dust in the dust return pipe. At the same time, compressed air is used as the power gas, which not only ensures the smooth operation of the dust collection unit, but also is low-cost and easy to implement. By setting up a dust suppression unit at the feed port, the dust phenomenon in the intermediate bin of the aggregate in the mixing station during operation is further reduced, the dust content in the surrounding environment of the intermediate bin of the aggregate in the mixing station is increased, and it has a good environmental benefit.

[0039] like Figure 2 and Figure 3 As shown, optionally, the dust suppression unit 3 includes an atomizer 310 , a water mist box 320 , a venturi tube 330 and a second fan 340 .

[0040] The inlet of the atomizer 310 is connected to a water pipe, the outlet of the atomizer 310 is connected to the water mist box 320, the outlet of the water mist box 320 is connected to the suction port 3301 of the venturi tube 330, the nozzle 3302 of the venturi tube 330 is connected to the second fan 340, and the outlet end of the diffusion section 3303 of the venturi tube 330 extends into the interior of the warehouse body 1.

[0041] A connecting plate 350 is provided on one side of the top of the silo body 1 close to the output end of the conveyor belt 120 , and the venturi tube 330 is connected to the connecting plate 350 via a connecting rod 360 .

[0042] Specifically, the dust suppression unit 3 includes an atomizer 310, a water mist box 320, a venturi tube 330 and a second fan 340. The inlet of the atomizer 310 is connected to the water pipe for atomizing water to obtain water mist. The water mist box 320 is used to receive the water mist from the atomizer 310. The nozzle 3302 of the venturi tube 330 is connected to the second fan 340. The air is blown from the nozzle 3302 into the venturi tube 330 through the second fan 340. The air with a certain speed that enters forms a negative pressure cavity at the outlet of the nozzle 3302 in the venturi tube 330, and the outlet of the water mist box 320 is connected to the suction port 3301 of the venturi tube 330. The water mist in the water mist box 320 is sucked into the negative pressure cavity of the venturi tube 330 through the suction port 3301, and the water mist is mixed with the air to obtain an air-water mist mixture, which is then sprayed into the interior of the silo 1 through the outlet of the diffusion section 3303 of the venturi tube 330. The air-water mist mixture has a certain kinetic energy when it is output at the outlet of the venturi tube 330. Therefore, when the air-water mist mixture enters the feed port 110, it generates thrust on the dust at the feed port 110, and causes the dust at the feed port 110 to enter the silo 1, thereby preventing the dust at the feed port 110 and the surrounding from escaping, thereby preventing the environment around the aggregate intermediate silo of the mixing station from being polluted by dust, which is conducive to the cleanliness of the surrounding air.

[0043] At the same time, the water mist is mixed with the air through the venturi tube 330, so that the air-water mist mixture enters the feed port 110 to drive the dust to move, and the dust is mixed with the water mist, so that the particle size of the dust particles increases, and then the dust falls into the bin body 1 under the action of gravity, which not only plays a role in dust suppression, but also reduces the amount of dust entering the dust collector 220, reduces the operating load of the dust collector 220, and saves energy consumption. In addition, the water is atomized by the atomizer 310 and then mixed with the air, which saves the amount of water and reduces the waste of water resources.

[0044] A connecting plate 350 is horizontally arranged on the top of the silo 1, and the connecting plate 350 protrudes from the top of the silo 1 to fix the venturi tube 330. The connecting rod 360 is used to connect the venturi tube 330 and the connecting plate 350 to fix the venturi tube 330. The connecting rod 360 and the venturi tube 330 can be connected by a clamp.

[0045] like Figure 4 and Figure 5 As shown, optionally, a venturi tube moving assembly is provided between the connecting rod 360 and the connecting plate 350 , and the venturi tube moving assembly includes a fixing plate 410 , a fixing block 420 , a screw rod 430 , a bearing 440 and a motor 450 .

[0046] The end of the connecting plate 350 away from the warehouse body 1 is vertically connected to the fixing plate 410, and the two ends of the fixing plate 410 along the length direction are respectively provided with fixing blocks 420, and the two ends of the screw rod 430 are connected to the fixing blocks 420 through bearings 440. The outer periphery of the screw rod 430 is provided with a screw nut 431, and the output end of the motor 450 is fixedly connected to one end of the screw rod 430, one end of the connecting rod 360 is connected to the venturi tube 330, and the other end of the connecting rod 360 is connected to the screw nut 431.

[0047] Specifically, the venturi tube moving assembly is used to move the venturi tube 330, so that the venturi tube 330 suppresses dust at the feed port 110 while moving, thereby increasing the dust suppression range of the dust suppression unit. The venturi tube moving assembly includes a fixing plate 410, a fixing block 420, a screw rod 430, a bearing 440 and a motor 450. The fixing plate 410 is connected to the connecting plate 350 and is used to fix the venturi tube moving assembly. The fixing blocks 420 are arranged at both ends of the fixing plate 410 and are used to fix the screw rod 430. The bearing 440 is arranged in the fixing block 420, and the outer ring of the bearing 440 is connected to the fixing block 420. The two ends of the screw rod 430 pass through the bearing 440 and are rotatably connected to the fixing block 420, so that the screw rod 430 can rotate. The output end of the motor 450 is fixedly connected to one end of the screw rod 430 to provide power to drive the screw rod 430 to rotate. The screw nut 431 is sleeved on the outer periphery of the screw rod 430. The rotation of the screw rod 430 drives the screw nut 431 to move along the length direction of the screw rod 430. The screw rod 430 is a reciprocating screw rod, which can drive the screw nut 431 to perform reciprocating linear motion on the screw rod 430. At the same time, the two ends of the connecting rod 360 are respectively connected to the screw nut 431 and the venturi tube 330. The reciprocating linear motion of the screw nut 431 drives the venturi tube 330 to reciprocate while spraying the air-water mist mixture, thereby increasing the range of the air-water mist mixture on dust and improving the dust suppression efficiency.

[0048] Furthermore, if Figure 5 As shown, the venturi tube moving assembly is also provided with a positioning light rod 432, which passes through the screw nut 431, and the two ends are respectively fixedly connected to the two fixed blocks 420, and the positioning light rod 432 is slidably connected to the screw nut 431, and the positioning light rod 432 is parallel to the length direction of the screw 430. This arrangement helps the positioning light rod 432 to limit the movement direction of the screw nut 431 during the reciprocating linear motion of the screw nut 431, ensuring that the screw nut 431 can only reciprocate in the linear direction. The screw nut 431 is connected to the screw 430 through a ball.

[0049] Furthermore, if Figure 6As shown, the screw rod 430 is composed of two sections of screw rods with opposite thread directions, and each section of the screw rod is connected to a venturi tube 330. When the motor 450 is started, due to the direction of the thread, the movement directions of the two venturi tubes 330 are opposite, making the dust suppression more efficient. Preferably, the lengths of the two sections of the screw rod are equal to ensure uniformity in the dust suppression process. Figure 3 As shown, optionally, a water mist regulating valve 321 is provided at the outlet of the water mist box 320 .

[0050] Specifically, the amount of water mist entering the venturi tube 330 is adjusted by adjusting the opening of the water mist regulating valve 321, so that the dust suppression unit has controllability and is easy to operate.

[0051] like Figure 2 As shown, optionally, a dust concentration sensor 140 is provided on the top of the bin body 1 .

[0052] Specifically, it can be determined whether to turn on the dust collection unit and the dust suppression unit according to the dust concentration reading displayed by the dust concentration sensor 140. When the reading of the dust concentration sensor 140 is greater than or equal to the preset dust concentration value, the dust collector 220, the first fan 211, and the air compressor 250 are turned on, and the atomizer 310, the water mist regulating valve 321, and the second fan 340 are turned on at the same time to remove dust and suppress dust from the intermediate bin of the aggregate in the mixing station.

[0053] like Figure 2 As shown, optionally, a filter screen 212 is provided inside the connection between the dust suction tube 210 and the top of the bin body 1 .

[0054] Specifically, before the dust enters the dust collector 220 through the dust suction pipe 210, it is filtered through the filter 212, and the obtained solid falls into the bin body 1. The air carrying the dust enters the dust collector 220 through the dust suction pipe 210 for further dust removal, thereby reducing the operating load of the dust collector 220 and reducing the consumption of electricity.

[0055] like Figure 2 As shown, optionally, a humidity detector 150 is provided on the top of the warehouse body 1.

[0056] Specifically, the humidity detector 150 is used to detect the moisture content on the top of the silo 1. When the humidity value detected by the humidity detector 150 is greater than the preset humidity value, the opening of the water mist reducing valve 321 is reduced to avoid excessive moisture content in the silo 1, which is not conducive to the falling of aggregates.

[0057] The technical solution of the present application is described in detail below with reference to specific embodiments.

[0058] In this embodiment, the operation process of the aggregate intermediate bin of the mixing station during specific operation is as follows:

[0059] Aggregates are fed into the silo 1 from the feed port 110 via the conveyor belt 120 for temporary storage. When unloading is required, the aggregates are discharged through the discharge port 130 at the bottom of the silo 1. Dust is generated in the silo 1 during the feeding process. According to the dust concentration reading displayed by the dust concentration sensor 140, it can be determined whether to turn on the dust collection unit and the dust suppression unit. When the reading of the dust concentration sensor 140 is greater than or equal to the preset dust concentration value, the dust collection unit and the dust suppression unit 3 are turned on to collect and process the dust.

[0060] When the dust collecting unit is working, the first fan 211 is turned on to provide negative pressure, and the dust in the silo 1 is sucked into the dust suction pipe 210. After being filtered by the filter 212, the dust is transported to the dust collector 220 through the dust suction pipe 210. The dust collector 220 collects the dust and obtains clean air, which is discharged from the top of the dust collector 220. The dust is collected in the ash hopper at the bottom of the dust collector 220, and finally returned to the silo 1 through the dust return pipe 230. At the same time, the air compressor 250 is turned on. After the air compressor 250 pressurizes the air, it is transported to the dust return pipe 230 through the pneumatic conveying pipe 240, providing power for the dust transport in the dust return pipe 230, so that the collected dust can be smoothly transported back to the silo 1, and the dust is prevented from being blocked in the dust return pipe 230.

[0061] When the dust suppression unit 3 is working, the atomizer 310, the water mist regulating valve 321 and the second fan 340 are turned on, the inlet of the atomizer 310 is connected to the water pipe, the water is atomized, and the obtained water mist enters the water mist box 320, the water mist regulating valve 321 is turned on, and the air is blown into the venturi tube 330 from the nozzle 3302 through the second fan 340. The air entering with a certain speed forms a negative pressure cavity at the outlet of the nozzle 3302 in the venturi tube 330, and the water mist in the water mist box 320 is sucked into the negative pressure cavity of the venturi tube 330 through the suction port 3301, and the water mist is mixed with the air to form an air-water mist mixture, and then sprayed to the interior of the bin body 1 through the outlet of the diffusion section 3303 of the venturi tube 330. When the air-water mist mixture enters the feed port 110, it generates thrust on the dust in the feed port 110, and causes the dust in the feed port 110 to enter the bin body 1, thereby preventing the dust in the feed port 110 and the surrounding from escaping. When the humidity value detected by the humidity detector 150 is greater than the preset humidity value, the opening of the water mist reducing valve 321 is reduced so that the reading of the humidity detector 150 is less than or equal to the preset humidity value.

[0062] During the dust suppression process, the Venturi tube 330 is moved by the Venturi tube moving assembly. The motor 450 is turned on to drive the screw 430 to rotate. The screw 430 is a reciprocating screw, which drives the screw nut 431 to make reciprocating linear motion on the screw 430. At the same time, the connecting rod 360 drives the Venturi tube 330 to reciprocate while spraying the air-water mist mixture, thereby increasing the range of the air-water mist mixture on the dust and improving the dust suppression efficiency. The connection between the water mist box 320 and the suction port 3301 of the Venturi tube 330 and the second fan 340 and the nozzle 3302 of the Venturi tube 330 are all flexible pipe connections. During the movement of the Venturi tube 330, the water mist box 320 and the second fan 340 do not move.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An aggregate intermediate silo for a mixing station, characterized in that: include: A silo (1) and a dust collecting unit, wherein a feed inlet (110) is provided at the top of the silo (1), the feed inlet (110) is connected to the output end of a conveyor belt (120), a discharge outlet (130) is provided at the bottom of the silo (1), and the dust collecting unit is connected to the top of the silo (1); The dust collecting unit comprises a dust suction pipe (210), a dust collector (220), a dust return pipe (230) and a pneumatic conveying pipe (240); one end of the dust suction pipe (210) is connected to the top of the silo (1) via a first fan (211); the other end of the dust suction pipe (210) is connected to the dust collector (220); the discharge end of the dust collector (220) is connected to one end of the dust return pipe (230); the other end of the dust return pipe (230) is connected to the upper side wall of the silo (1); one end of the pneumatic conveying pipe (240) is connected to the output end of an air compressor (250); the other end of the pneumatic conveying pipe (240) is connected to the dust return pipe (230); A dust suppression unit (3) is provided at the connection between the top of the bin body (1) and the output end of the conveyor belt (120).

2. The intermediate aggregate silo of a mixing station according to claim 1, characterized in that: The dust suppression unit (3) comprises an atomizer (310), a water mist box (320), a venturi tube (330) and a second fan (340); The inlet of the atomizer (310) is connected to a water pipe, the outlet of the atomizer (310) is in communication with the water mist box (320), the outlet of the water mist box (320) is in communication with the suction port (3301) of the venturi tube (330), the nozzle (3302) of the venturi tube (330) is connected to the second fan (340), and the outlet end of the diffusion section (3303) of the venturi tube (330) extends into the interior of the bin body (1); A connecting plate (350) is provided on one side of the top of the warehouse body (1) close to the output end of the conveyor belt (120), and the venturi tube (330) is connected to the connecting plate (350) via a connecting rod (360).

3. The intermediate aggregate silo of a mixing station according to claim 2, characterized in that: A venturi tube moving assembly is provided between the connecting rod (360) and the connecting plate (350), and the venturi tube moving assembly comprises a fixing plate (410), a fixing block (420), a screw rod (430), a bearing (440) and a motor (450); The end of the connecting plate (350) away from the bin body (1) is vertically connected to a fixing plate (410), and fixing blocks (420) are respectively provided at both ends of the fixing plate (410) along the length direction. The two ends of the screw rod (430) are connected to the fixing blocks (420) through the bearings (440), and the outer periphery of the screw rod (430) is sleeved with a screw nut (431). The output end of the motor (450) is fixedly connected to one end of the screw rod (430), one end of the connecting rod (360) is connected to the Venturi tube (330), and the other end of the connecting rod (360) is connected to the screw nut (431).

4. The intermediate aggregate silo of a mixing station according to claim 3, characterized in that: The outlet of the water mist box (320) is provided with a water mist regulating valve (321).

5. The aggregate intermediate bin of a mixing station according to any one of claims 1 to 4, characterized in that: A dust concentration sensor (140) is arranged on the top of the warehouse body (1).

6. The intermediate aggregate silo of a mixing station according to claim 5, characterized in that: A filter screen (212) is provided inside the connection between the dust suction pipe (210) and the top of the bin body (1).

7. The intermediate aggregate silo of a mixing station according to claim 6, characterized in that: A humidity detector (150) is arranged on the top of the warehouse body (1).

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