A spray dust reduction device for concrete production

Abstract

The present invention provides a spray dust reduction device for concrete production, and relates to the technical field of spray dust reduction. A spray dust reduction device for concrete production comprises: a silo partition; a support shell, fixedly connected to the top wall of the silo partition; a spray bracket, the spray bracket is provided with a first nozzle for spraying water mist into the silo partition, and the spray bracket is fixedly installed with a detector for detecting the dust concentration in the silo partition; a connecting block, which is slidably arranged in the support shell and fixedly connected to the spray bracket, the connecting block is hinged with a first connecting rod, the first connecting rod is hinged with a second connecting rod at one end away from the connecting block, the first connecting rod and the second connecting rod are provided with multiple and alternately hinged head to tail, a second nozzle is hinged between the first connecting rod and the second connecting rod, and the second nozzle is arranged along the length direction of the support shell; a driving mechanism is used to drive the connecting block to move in the vertical direction. The present invention has the function of improving the dust reduction effect in the factory.

Description

Technical Field

[0001] The invention relates to the technical field of spraying dust reduction, and in particular to a spraying dust reduction device for concrete production. Background Art

[0002] The spray dust suppression device is an environmental protection device used to control and reduce the dust content in the air. The working principle of the spray dust suppression device is based on the surface tension of tiny water droplets is close to zero. When these water droplets are sprayed into the air, they can quickly absorb dust particles in the air to form a dust control effect. This effect is not limited to dust control and dust reduction in large open areas, but also includes precise dust reduction in specific areas. The spray dust suppression device is suitable for industrial production environments such as quarries, cement plants, coal mines and steel plants.

[0003] For example, in the Chinese patent with publication number CN214914486U and subject name of a spray dust suppression device for concrete production, when concrete is placed in the silo partition, the dust concentration sensor on each detection rod compares the dust concentration with the set value, and the warning light will light up when dust is detected. At this time, the position of the fixed plate is adjusted according to the lighting of the warning light of each detection rod. The fixed plate is driven by the cylinder to drive a group of spray heads to slide according to the warning light, and then the switch valve is opened to allow water to flow into the water distribution pipe through the main water pipe, so that the spray head starts to spray and suppress dust.

[0004] With regard to the above-mentioned related technologies, the spray dust reduction mechanism is evenly arranged on the top of the factory building. Due to the different dust reduction needs in different areas of the factory building, when the spray dust reduction mechanism sprays water mist on the dust on the top, the water mist contacts the top of the dust, and the movement trajectory of the dust below is difficult to determine. The dust below moves upward and diffuses to other areas of the factory, thereby having a negative impact on the dust reduction effect in the factory. Summary of the invention

[0005] In view of this, the present invention provides a concrete production spray dust reduction device, which aims to solve the problem that the dust located below will disperse to other areas of the factory while moving upward.

[0006] To solve the above technical problems, the present invention provides a concrete production spray dust suppression device, comprising a silo partition; a support shell, fixedly connected to the top wall of the silo partition; a spray bracket, slidably connected to the support shell, the spray bracket is provided with a first nozzle for spraying water mist into the silo partition, and the spray bracket is fixedly installed with a detector for detecting dust concentration; a connecting block, which is slidably arranged in the support shell and fixedly connected to the spray bracket, the connecting block is hinged with a first connecting rod, the first connecting rod is hinged with a second connecting rod at one end away from the connecting block, the first connecting rod and the second connecting rod are provided with multiple and alternately hinged end to end, and a second nozzle is hinged between the first connecting rod and the second connecting rod; a driving mechanism is arranged in the support shell, and is used to drive the connecting block to move in a vertical direction.

[0007] By adopting the above technical solution, the second nozzle generates water mist at the side wall of the silo partition, reducing the amount of dust located below that is dispersed to other areas of the factory while moving upward, thereby improving the dust reduction effect in the factory. In addition, since the first connecting rod and the second connecting rod form a scissor lift structure, the second nozzle can be evenly distributed between the silo partition and the spray bracket after movement, thereby improving the uniformity of the water mist at the side wall of the silo partition, and further improving the dust reduction effect on the concrete in the silo partition.

[0008] Optionally, the driving mechanism includes a rotation source fixedly mounted on the silo partition, a driving shaft of the rotation source is fixedly connected to a transmission screw, and the transmission screw is threadedly connected to the connecting block.

[0009] Optionally, a guide block is hinged between the first connecting rod and the second connecting rod, and the guide block is slidably sleeved on the outer side wall of the transmission screw.

[0010] Optionally, each of the second nozzles is hinged with a rotating rod, a sliding shell is hinged between two adjacent rotating rods, a third nozzle is arranged in the sliding shell, a flow groove connected to the interior of the third nozzle is opened inside the sliding shell, the sliding shell is slidably connected with a guide rod, the guide rod is fixedly connected to the guide block, a guide slot is opened on the side wall of the guide rod, the bottom wall of the guide slot abuts against a flow limiting rod, the movement of the flow limiting rod is used to control the amount of water mist output by the third nozzle, and a reset spring is arranged between the flow limiting rod and the bottom wall of the guide slot.

[0011] By adopting the above technical solution, the density of water mist at the side wall of the silo partition is reduced when the distance between two adjacent second nozzles is increased. When the third nozzle moves toward the outside of the supporting shell, the flow limiting rod opens the water outlet of the third nozzle, so that the third nozzle and the second nozzle jointly remove dust from the concrete, which is beneficial to improve the dust removal effect on the concrete.

[0012] Optionally, a plurality of first nozzles are provided, the spray bracket is fixedly connected to a first infusion tube, and each of the first nozzles is connected to the interior of the first infusion tube.

[0013] By adopting the above technical solution, the first liquid infusion pipe is connected in series with all the first nozzles, thereby providing water source to the first nozzles for spraying.

[0014] Optionally, a second infusion tube is provided in the supporting shell, and the second nozzle and the third nozzle are both connected to the interior of the second infusion tube.

[0015] Optionally, the silo partition is fixedly connected to an L-shaped shell at the corner, the first connecting rod and the second connecting rod are arranged in the L-shaped shell, an L-shaped block is hinged between the first connecting rod and the second connecting rod, and the first connecting rod and the second connecting rod are hinged to the second nozzle at one end away from the L-shaped block.

[0016] By adopting the above technical solution, the L-shaped block is adapted to the corner of the silo partition, so that the water mist output from the two side walls of the L-shaped shell is perpendicular to each other, further improving the dust reduction effect on the concrete.

[0017] Optionally, a distance sensor is fixedly mounted on the side wall of the silo partition, and the distance sensor is used to detect whether a vehicle for transporting concrete has moved out of the silo partition, thereby controlling the opening state of the first nozzle, the second nozzle and the third nozzle.

[0018] By adopting the above technical solution, after the vehicle moves out of the silo partition, the distance sensor detects the change in the vehicle distance and starts, thereby controlling the opening of the first nozzle, the second nozzle and the third nozzle, thereby achieving automatic dust reduction of the concrete in the silo partition.

[0019] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects:

[0020] 1. The second nozzle generates water mist at the side wall of the silo partition, reducing the amount of dust located below that moves upward and diffuses to other areas of the factory, thereby improving the dust reduction effect in the factory. In addition, since the first connecting rod and the second connecting rod form a scissor lift structure, the second nozzle can be evenly distributed between the silo partition and the spray bracket after movement, thereby improving the uniformity of the water mist at the side wall of the silo partition and further improving the dust reduction effect on the concrete in the silo partition.

[0021] 2. When the distance between two adjacent second nozzles increases, the density of water mist at the side wall of the silo partition is reduced. When the third nozzle moves to the outside of the supporting shell, the flow limiting rod opens the water outlet of the third nozzle, so that the third nozzle and the second nozzle can jointly remove dust from the concrete, which is beneficial to improve the dust removal effect on the concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of a spray bracket according to an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the internal structure of the supporting housing according to an embodiment of the present invention;

[0025] Figure 4 For the embodiment of the present invention Figure 3 A partial enlarged view of the middle area A;

[0026] Figure 5 It is a schematic diagram of the sliding housing part of an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the internal structure of a sliding housing according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic structural diagram of a current limiting rod according to an embodiment of the present invention;

[0029] Figure 8 Schematic diagram of the structure of a T-shaped block according to an embodiment of the present invention.

[0030] Explanation of the accompanying drawings: 1. silo partition; 11. supporting shell; 2. spray bracket; 21. first nozzle; 22. detector; 3. connecting block; 31. first connecting rod; 32. second connecting rod; 33. second nozzle; 34. guide block; 4. driving mechanism; 41. rotation source; 42. transmission screw; 5. rotating rod; 51. sliding shell; 511. circulation groove; 52. third nozzle; 53. guide rod; 531. guide slide groove; 532. guide slope; 54. flow limiting rod; 541. flow limiting groove; 55. reset spring; 6. first infusion tube; 7. second infusion tube; 8. L-shaped shell; 81. L-shaped block; 9. distance sensor. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 8, the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0032] This embodiment provides a concrete production spray dust reduction device, referring to Figure 1 and Figure 2 A concrete production spray dust reduction device includes a silo partition 1, which is erected in the factory and is used to divide the space in the factory so that the area that needs dust reduction can be sprayed in a targeted manner. The top wall of the silo partition 1 is fixedly connected to a support shell 11, and the support shell 11 is vertically slidably connected to a spray bracket 2, and the spray bracket 2 is provided with a first nozzle 21 for spraying water mist into the silo partition 1, and the spray bracket 2 is fixedly installed with a detector 22 for detecting the dust concentration in the silo partition 1.

[0033] Reference Figure 3 , Figure 4 and Figure 5 A connecting block 3 is slidably connected in the support shell 11, and the connecting block 3 is fixedly connected to the spray bracket 2. A first connecting rod 31 is hinged to the connecting block 3, and a second connecting rod 32 is hinged to the end of the first connecting rod 31 away from the connecting block 3. A plurality of first connecting rods 31 and second connecting rods 32 are alternately arranged along the length direction of the support shell 11, and adjacent first connecting rods 31 and second connecting rods 32 are hinged end to end. A second spray head 33 is hinged between adjacent first connecting rods 31 and second connecting rods 32, and the second spray heads 33 are arranged along the length direction of the support shell 11. A driving mechanism 4 is arranged in the support shell 11, and the driving mechanism 4 is used to drive the connecting block 3 to move in the vertical direction.

[0034] When concrete accumulates in the silo partition 1 and raises dust, according to the concentration of dust in the silo partition 1 detected by the detector 22, the driving mechanism 4 drives the connecting block 3 to move in the vertical direction, the spray bracket 2 moves synchronously with the connecting block 3, and the first nozzle 21 sprays water mist downward to reduce dust. When the connecting block 3 rises, it drives the first connecting rod 31 to rotate and move upward at the same time. The first connecting rod 31 and the second connecting rod 32 form a scissor lift structure. The second connecting rod 32 moves synchronously with the first connecting rod 31, thereby driving the second nozzle 33 to move synchronously with the connecting block 3 in the vertical direction, and then the second nozzle 33 sprays water mist to reduce dust, thereby the second nozzle 33 forms water mist at the side wall of the silo partition 1 to reduce dust.

[0035] The second nozzle 33 generates water mist at the side wall of the silo partition 1, reducing the amount of dust located below that is dispersed to other areas of the factory while moving upward, thereby improving the dust reduction effect in the factory. In addition, since the first connecting rod 31 and the second connecting rod 32 form a scissor lift structure, the second nozzle 33 can be evenly distributed between the silo partition 1 and the spray bracket 2 after movement, thereby improving the uniformity of the water mist at the side wall of the silo partition 1, and further improving the dust reduction effect on the concrete in the silo partition 1.

[0036] Reference Figure 3 and Figure 4 The driving mechanism 4 includes a rotation source 41 fixedly mounted on the silo partition 1, and a driving shaft of the rotation source 41 is fixedly connected with a transmission screw 42, and the transmission screw 42 is threadedly connected to the connection block 3. The transmission screw 42 and the connection block 3 form a screw slider structure, and the rotation source 41 drives the transmission screw 42 to rotate, thereby moving the connection block 3 in the vertical direction. In addition, linear drive elements such as cylinders and hydraulic cylinders can also drive the connection block 3 to move in the vertical direction.

[0037] Reference Figure 3 and Figure 5 A guide block 34 is hinged between the adjacent first connecting rod 31 and the second connecting rod 32. The guide block 34 is arranged at one end of the first connecting rod 31 away from the second nozzle 33, and the guide block 34 is arranged at one end of the second connecting rod 32 away from the second nozzle 33. The guide block 34 is slidably sleeved on the outer side wall of the transmission screw 42, and the guide block 34 located at the bottom is fixedly connected to the top wall of the silo partition 1. The guide block 34 increases the stability of the movement of the first connecting rod 31 and the second connecting rod 32. The top wall and the bottom wall of each second nozzle 33 are respectively hinged with a rotating rod 5, and a sliding shell 51 is hinged between two adjacent rotating rods 5. A third nozzle 52 is arranged in the sliding shell 51.

[0038] Reference Figure 5 , Figure 6 and Figure 7 , a flow groove 511 communicating with the inside of the third nozzle 52 is provided inside the sliding housing 51. The sliding housing 51 is slidably connected with a guide rod 53, which is fixedly connected to the guide block 34. A guide slot 531 is provided on the side wall of the guide rod 53, and the bottom wall of the guide slot 531 is a guide slope 532. The guide slope 532 abuts against the flow limiting rod 54, and a flow limiting slot 541 is provided on the side wall of the flow limiting rod 54. The flow limiting rod 54 slides and extends into the third nozzle 52, and the flow groove 511 can overlap with the flow limiting slot 541. A return spring 55 is provided between the flow limiting rod 54 and the bottom wall of the guide slot 531.

[0039] The third nozzle 52 is disposed between two adjacent second nozzles 33, and the flow limiting rod 54 closes the water outlet in the third nozzle 52. When the driving mechanism 4 drives the connecting block 3 to move upward, the connecting block 3 drives the second nozzle 33 to move upward through the first connecting rod 31 and the second connecting rod 32, and the distance between the two adjacent second nozzles 33 is also increased. At this time, the two adjacent second nozzles 33 drive the sliding shell 51 to move toward the outside of the supporting shell 11 through the rotating rod 5, and the third nozzle 52 and the flow limiting rod 54 move synchronously with the sliding shell 51. The flow limiting rod 54 extends out of one end of the sliding shell 51 and abuts against the guide slope 532. The flow limiting rod 54 moves along the length direction of the guide rod 53 while being squeezed by the guide slope 532, so that the flow limiting rod 54 moves toward the inside of the sliding shell 51, and the flow limiting groove 541 moves synchronously with the flow limiting rod 54 and overlaps with the flow groove 511, so that water flows through the flow groove 511 and the flow limiting groove 541 to flow to the third nozzle 52, and then the third nozzle 52 outputs water mist for dust reduction. At this time, the reset spring 55 is compressed.

[0040] When the distance between two adjacent second nozzles 33 increases, the density of the water mist at the side wall of the silo partition 1 is reduced. While the third nozzle 52 moves toward the outside of the supporting shell 11, the limiting rod 54 opens the water outlet of the third nozzle 52, so that the third nozzle 52 and the second nozzle 33 can jointly remove dust from the concrete, which is beneficial to improve the dust removal effect on the concrete.

[0041] When the distance between two adjacent second nozzles 33 decreases, the third nozzle 52 moves toward the inside of the support housing 11, and the flow-limiting rod 54 moves with the third nozzle 52 to separate from the guide slope 532, and the return spring 55 squeezes the flow-limiting rod 54 to move toward the outside of the sliding housing 51, at which time the flow slot 511 separates from the flow-limiting slot 541, and the flow-limiting rod 54 closes the third nozzle 52. The reduction in the distance between two adjacent second nozzles 33 increases the density of the water mist, and the function of the flow-limiting rod 54 closing the third nozzle 52 can save water resources while maintaining the dust removal effect on the concrete.

[0042] Reference Figure 2 There are multiple first nozzles 21, and the spray bracket 2 is fixedly connected to the first infusion tube 6. Each first nozzle 21 is connected to the inside of the first infusion tube 6, so that the first infusion tube 6 provides water to the first nozzle 21 for spraying.

[0043] Reference Figure 5The second liquid infusion pipe 7 is arranged in the supporting shell 11, and the second nozzle 33 and the third nozzle 52 are both connected to the inside of the second liquid infusion pipe 7. The second nozzle 33 and the third nozzle 52 are arranged alternately, and the second liquid infusion pipe 7 provides water source to the second nozzle 33 and the third nozzle 52 for spraying. When the first connecting rod 31 and the second connecting rod 32 are rotating, the distance between the second nozzle 33 and the third nozzle 52 remains unchanged, thereby maintaining the length of the second liquid infusion pipe 7 between two adjacent second nozzles 33 and the third nozzle 52, reducing the probability of the second liquid infusion pipe 7 being stretched and damaged, and the second liquid infusion pipe 7 being entangled with the first connecting rod 31 and the second connecting rod 32.

[0044] Reference Figure 1 and Figure 8 The silo partition 1 is fixedly connected with an L-shaped shell 8 at the corner, the first connecting rod 31 and the third connecting rod are arranged in the L-shaped shell 8, an L-shaped block 81 is hinged between the first connecting rod 31 and the second connecting rod 32, and the second nozzle 33 is hinged between the adjacent first connecting rod 31 and the second connecting rod 32, and the second nozzle 33 is arranged at one end of the first connecting rod 31 away from the L-shaped block 81, and the second nozzle 33 is arranged at one end of the second connecting rod 32 away from the L-shaped block 81. The L-shaped block 81 is adapted to the corner of the silo partition 1, so that the water mist output by the two side walls of the L-shaped shell 8 is perpendicular to each other, further improving the dust reduction effect on concrete.

[0045] Reference Figure 1 and Figure 3 A distance sensor 9 is fixedly installed on the side wall of the silo partition 1. When a vehicle enters the silo partition 1 to unload, and then moves out of the silo partition 1, the distance sensor 9 detects the change in the distance of the vehicle and starts to control the opening of the first nozzle 21, the second nozzle 33 and the third nozzle 52, thereby realizing automatic dust reduction of the concrete in the silo partition 1.

[0046] The implementation principle of a concrete production spray dust reduction device according to the embodiment of the present invention is as follows: when concrete is accumulated in the silo partition 1 and dust is raised, according to the concentration of dust in the silo partition 1 detected by the detector 22, the rotation source 41 drives the connecting block 3 to move in the vertical direction through the transmission screw 42, the spray bracket 2 moves synchronously with the connecting block 3, and the first nozzle 21 sprays water mist downward to reduce dust. When the connecting block 3 rises, it drives the first connecting rod 31 to rotate and move upward at the same time, and the first connecting rod 31 and the second connecting rod 32 form a scissor lift structure, and the second connecting rod 32 moves synchronously with the first connecting rod 31, thereby driving multiple second nozzles 33 to move synchronously with the connecting block 3 in the vertical direction, and then the second nozzles 33 spray water mist to reduce dust, thereby forming water mist at the side wall of the silo partition 1 to reduce dust.

[0047] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A concrete production spray dust suppression device, comprising a silo partition, characterized in that: Also includes: A support shell fixedly connected to the top wall of the silo partition; A spray bracket, which is slidably connected to the support shell, the spray bracket is provided with a first nozzle for spraying water mist into the silo partition, and the spray bracket is fixedly installed with a detector for detecting dust concentration; A connecting block is slidably disposed in the supporting shell and fixedly connected to the spray bracket, the connecting block is hinged with a first connecting rod, the first connecting rod is hinged with a second connecting rod at one end away from the connecting block, the first connecting rod and the second connecting rod are provided with a plurality of connecting rods and are alternately hinged end to end, and a second spray head is provided at the hinge of the first connecting rod and the second connecting rod; The driving mechanism is arranged in the supporting shell and is used to drive the connecting block to move in the vertical direction; The driving mechanism comprises a rotation source fixedly mounted on the silo partition, a driving shaft of the rotation source is fixedly connected with a transmission screw, and the transmission screw is threadedly connected to the connection block; A guide block is hinged between the first connecting rod and the second connecting rod, and the guide block is slidably sleeved on the outer side wall of the transmission screw. The guide block is arranged at the end of the first connecting rod away from the second nozzle, and the guide block is arranged at the end of the second connecting rod away from the second nozzle. The guide block located at the bottom is fixedly connected to the top wall of the silo partition; Each of the second nozzles is hinged with a rotating rod, and a sliding shell is hinged at the connection between two adjacent rotating rods at one end away from the second nozzle. A third nozzle is arranged in the sliding shell, and a flow groove connected to the inside of the third nozzle is provided inside the sliding shell. The sliding shell is slidably connected with a guide rod, and the guide rod is fixedly connected to the guide block. A guide slide groove is provided on the side wall of the guide rod, and the bottom wall of the guide slide groove is a guide inclined surface, which abuts against the limiting flow rod. A limiting flow groove is provided on the side wall of the limiting rod, and the limiting rod slides into the third nozzle, and the flow groove can overlap with the limiting flow groove. The movement of the limiting rod is used to control the amount of water mist output by the third nozzle, and a reset spring is provided between the limiting rod and the bottom wall of the guide slide groove.

2. A concrete production spray dust suppression device according to claim 1, characterized in that: A plurality of the first nozzles are provided, the spray bracket is fixedly connected to a first infusion tube, and each of the first nozzles is communicated with the interior of the first infusion tube.

3. A concrete production spray dust suppression device according to claim 1, characterized in that: A second infusion tube is arranged in the supporting shell, and the second nozzle and the third nozzle are both connected to the inside of the second infusion tube.

4. A concrete production spray dust suppression device according to claim 1, characterized in that: The silo partition is fixedly connected to an L-shaped shell at the corner, the first connecting rod and the second connecting rod are arranged in the L-shaped shell, an L-shaped block is hinged between the first connecting rod and the second connecting rod, and the first connecting rod and the second connecting rod are hinged to the second nozzle at one end away from the L-shaped block.

5. The concrete production spray dust suppression device according to claim 1, characterized in that: A distance sensor is fixedly mounted on the side wall of the silo partition, and the distance sensor is used to detect whether a vehicle for conveying concrete moves out of the silo partition, thereby controlling the opening states of the first nozzle, the second nozzle and the third nozzle.

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