Unit type spraying system

Abstract

The utility model discloses a unit type spraying system, which is convenient to disassemble and assemble due to the design that the unit type spraying system is arranged on a fully-mechanized coal mining unit and adopts a screw rod connection mode, and meanwhile, a spraying plate of the spraying system is divided into three spraying areas which respectively face three different angles, so that the spraying range is expanded, and the spraying efficiency is improved. The spraying blind area is reduced, the upper portion and the lower portion of the whole coal seam are effectively covered, the coal dust restraining effect can be improved through all-directional spraying, it is ensured that the whole working area is fully protected, one end of the spraying device is closed, the other end of the spraying device is tightly matched with the sealing cover through the limiting device, and good sealing performance is ensured. After the baffle disc is installed, water mist generated by the spraying head is fan-shaped, when direct-current spraying is needed, the position of the baffle disc can be adjusted by rotating the connecting rod, and the baffle disc is pulled out after the baffle disc is aligned with the guide block and the guide groove, so that the spraying surface and the spraying distance are effectively increased, and the efficiency and the coverage range of the spraying system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray equipment, in particular to a unit-type spray system. Background Art

[0002] When using the fully mechanized mining unit, the spray effect of the existing spray system is insufficient and cannot effectively cover the upper and lower parts of the coal seam when the coal mining machine is cutting coal. This results in the inability to fully suppress the coal dust, which increases the concentration of coal dust in the working area, increasing air pollution and employee health risks. At the same time, the spray system does not cover the coal seam sufficiently and cannot effectively dilute or remove gas, resulting in excessive gas concentration, thereby increasing the risk of explosion and threatening safe production. In addition, the inadequacy of the spray system leads to increased dust accumulation in equipment and working areas, making cleaning and maintenance more difficult, which in turn affects work efficiency and equipment life. Insufficient spray coverage also affects production progress, resulting in reduced production efficiency and increased downtime. Utility Model Content

[0003] The utility model aims to provide a unit-type spray system to solve the problem that the self-contained spray on the currently used comprehensive mining unit cannot be effectively sprayed to the upper and lower parts of the coal seam when the coal mining machine is cutting coal, causing large amounts of coal dust and gas during operation, thus affecting safe production.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a unit-type spray system, comprising a fully mechanized mining unit, a spray device, and a limit device, wherein a reserved threaded hole is opened on the fully mechanized mining unit, a bottom plate is connected to the top of the fully mechanized mining unit, through holes are symmetrically opened on the left and right sides of the bottom plate, screws are arranged in the through holes, the screws penetrate the bottom plate and are screwed into the threaded holes of the fully mechanized mining unit, a spray device is connected to the bottom plate, and the limit device is connected to the spray device,

[0005] The spray device comprises a fixed plate, a spray plate and a sealing cover. The fixed plate is vertically arranged on the bottom plate. A linkage hole is provided at the rear end of the fixed plate. A water source connector is provided in the linkage hole. The spray plate is composed of three connecting plates arranged at an angle and connected in sequence. The bottom end of the spray plate is connected to the bottom plate, and the top end is connected to the fixed plate. A cavity is formed between the fixed plate, the spray plate and the bottom plate. A plurality of spray holes are provided on the spray plate, and spray heads are connected to the spray holes respectively. A baffle is fixedly connected to one end of the fixed plate and the spray plate, and a sealing cover is embedded in the other end. The sealing cover abuts against the limit device.

[0006] The limiting device includes a housing, a positioning rod, a return spring, and a limiting block. The housing is a hollow shell with an opening to the right. A hole is provided at the left end of the housing, and the positioning rod is arranged in the hole and slidably fitted with the housing. A limiting rod is inserted at the top of the positioning rod, and the limiting rod abuts against the housing. The bottom end of the positioning rod is connected to the limiting block, and the limiting block is slidably fitted with the housing. The limiting block abuts against the sealing cover. A return spring is arranged between the limiting block and the inner wall of the housing and sleeved on the positioning rod. One end of the return spring abuts against the limiting block, and the other end abuts against the inner wall of the housing.

[0007] Preferably, the connecting plate includes a first connecting plate, a second connecting plate, and a third connecting plate. The first connecting plate is obliquely arranged on the bottom plate. The angle between the second connecting plate and the first connecting plate is 130°. The included angle between the third connecting plate and the second connecting plate is 140°. The top end of the third connecting plate is connected to the fixing plate.

[0008] Preferably, sealing strips are provided at the contact ends of the sealing cover with the fixing plate and the spraying plate to prevent the water source in the cavity from flowing out.

[0009] Preferably, the contact end of the limiting block extends towards the middle of the sealing cover to improve the sealing performance of the sealing cover.

[0010] Preferably, the limiting block is trapezoidally arranged. The inclined end is used to reduce friction and facilitate the installation of the sealing cover, and its vertical end abuts against the sealing cover.

[0011] Preferably, the water source connector is connected to the water source through a hose, and a one-way valve is provided thereon to prevent the water source in the cavity from flowing back.

[0012] Preferably, a baffle is embedded in the spray head, and a gap is left between the baffle and the inner wall of the spray head. Vertically arranged guiding grooves are angled on the inner wall of the spray head. Guide blocks are evenly connected to the outer circumference of the baffle at an angle and are slidably fitted with the guiding grooves. An engaging groove is provided at the cut-off end of the guiding groove and arranged on the inner wall of the spray head. The guide blocks are rotatably fitted in the engaging groove, and the upper and lower ends of the guide blocks respectively abut against the inner wall of the engaging groove.

[0013] Preferably, a connecting rod is provided in the middle of the baffle for installing and disassembling the baffle.

[0014] Preferably, extension parts are respectively provided at the upper and lower ends of the contact end of the housing with the fixing plate. Positioning holes are provided in the extension parts, and threaded rods are arranged in the positioning holes and screwed into the threaded holes preset on the fixing plate.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] By installing the device on the fully-mechanized mining unit and adopting a screw connection method, this design facilitates the disassembly and installation of the device. At the same time, the spray plate of the spray system is divided into three spray areas, facing three different angles respectively, thus expanding the spray range and reducing the spray blind area, effectively covering the upper and lower parts of the entire coal seam. Omnidirectional spraying can improve the suppression effect of coal dust and ensure full protection of the entire working area. In addition, one end of the spray device is closed, and the other end is tightly fitted with the sealing cover through a limiting device, ensuring good sealing performance.

[0017] When too many impurities accumulate in the internal cavity of the spray device, it can be cleaned by pulling the limiting rod of the limiting device. Pulling the limiting rod will cause the positioning rod to slide, thereby driving the limiting block to slide together. After that, the sealing cover can be disassembled for internal cleaning to ensure the normal operation of the spray device.

[0018] In addition, a baffle plate is embedded in the spray head. After installing the baffle plate, the water mist generated by the spray head is fan-shaped. When direct spraying is required, the position of the baffle plate can be adjusted by rotating the connecting rod. After aligning the baffle plate with the guide block and the guide groove, the baffle plate can be pulled out. This design effectively increases the spraying surface and spraying distance, improving the efficiency and coverage of the spray system. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0020] Figure 2 It is a schematic diagram of the cooperating structure of the water source joint, fixed plate, and spray plate of the present utility model.

[0021] Figure 3 It is a schematic diagram of the structure of the spray device of the present utility model.

[0022] Figure 4 It is a schematic diagram of the structure of the limiting device of the present utility model.

[0023] Figure 5 It is a schematic diagram of the cooperating structure of the spray head and the baffle plate of the present utility model.

[0024] Figure 6 It is a schematic diagram of the disassembled structure of the spray head and the baffle plate of the present utility model.

[0025] In the figure: 1. Fully-mechanized mining unit; 2. Floor; 3. Spray device; 301. Fixed plate; 302. Spray plate; 303. Sealing cover; 304. Spray head; 305. Water source joint; 306. Baffle plate; 307. Guide block; 308. Fitting groove; 4. Limiting device; 401. Housing; 402. Positioning rod; 403. Limiting rod; 404. Return spring; 405. Limiting block. Detailed Implementation Modes

[0026] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. shall be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment 1: Please refer to Figures 1-3, An embodiment provided by the utility model: A unit type spray system, including a fully-mechanized mining unit 1, a spray device 3, and a limiting device 4. Threaded holes are reserved on the fully-mechanized mining unit 1. Through the reserved threaded holes, it is convenient to fix and adjust the position of the device. At the same time, the device can be installed at any position at will. The top end of the fully-mechanized mining unit 1 is connected with a bottom plate 2. The bottom plate 2 is connected to the fully-mechanized mining unit 1, providing a fixed platform for the spray device 3. The through holes designed on the left and right sides allow the installation of screws, enhancing the stability of the bottom plate 2. And at the same time, the bottom plate 2 is located at the front end of the fully-mechanized mining unit 1 to avoid blocking the spraying effect. Through holes are symmetrically opened on the left and right sides of the bottom plate 2. Screws are arranged in the through holes. The screws penetrate through the bottom plate 2 and are screwed into the threaded holes of the fully-mechanized mining unit 1. A spray device 3 is connected to the bottom plate 2. The spray device 3 is responsible for the generation and distribution of the spray, reducing coal dust. A cavity is formed through the combination of a fixing plate 301, a spraying plate 302, and a sealing cover 303 to achieve efficient distribution and sealing protection of the spray. A limiting device 4 is connected to the spray device 3.

[0031] The spray device 3 includes a fixing plate 301. The fixing plate 301 supports the spraying plate 302 and is connected to a water source joint 305. It is vertically arranged to provide stable support. The water source joint 305 in the linkage hole ensures reliable water source connection and at the same time transmits it into the cavity for spraying. The spraying plate 302 distributes the spray. It has a plurality of spray holes and spray heads 304 and is composed of connecting plates at multiple angles, expanding the spray coverage range and improving the uniformity of the spray. The sealing cover 303. Sealing strips are provided at the contact ends of the sealing cover 303 with the fixing plate 301 and the spraying plate 302 to prevent the water source in the cavity from flowing out. The sealing cover 303 closes the opening of the spray device 3 to prevent water source leakage. At the same time, sealing strips are provided to ensure the sealing performance and avoid external leakage of the water source. The detachable sealing cover 303 simplifies the maintenance and cleaning process of the equipment. The fixing plate 301 is vertically set on the bottom plate 2. A linkage hole is opened at the rear end of the fixing plate 301. A water source joint 305 is arranged in the linkage hole. The water source joint 305 connects the external water source with the spray device 3 and is equipped with a one-way valve to prevent water source backflow and maintain the water pressure stability of the system. The spraying plate 302 is sequentially connected by three connecting plates arranged at an angle. The bottom end of the spraying plate 302 is connected to the bottom plate 2, and the top end is connected to the fixing plate 301. A cavity is arranged between the fixing plate 301, the spraying plate 302, and the bottom plate 2. A number of spray holes are opened on the spraying plate 302, and spray heads 304 are respectively connected to the spray holes. One end of the fixing plate 301 and the spraying plate 302 is fixedly connected with a baffle, and the other end is fitted with a sealing cover 303. The sealing cover 303 abuts against the limiting device 4.

[0032] The connecting plate includes a first connecting plate, a second connecting plate, and a third connecting plate. The first connecting plate is obliquely arranged on the bottom plate 2, and at the same time, the front end of the first connecting plate and the bottom plate 2 are on the same axis to prevent the water mist ejected by the spray head 304 on the first connecting plate from being blocked during spraying. The angle between the second connecting plate and the first connecting plate is 130°, the included angle between the third connecting plate and the second connecting plate is 140°, the top end of the third connecting plate is connected to the fixing plate 301, and the angle and spray holes of the spraying device 3 optimize the spray coverage range and reduce the spray blind area.

[0033] The water source connector 305 is connected to the water source through a hose, and a one-way valve is provided thereon to prevent the water source in the cavity from flowing back. During use, first, the bottom plate 2 is installed in the threaded hole reserved on the fully-mechanized mining unit 1 through a screw. Subsequently, the sealing cover 303 is fitted onto the open end of the spraying device 3, the water source connector 305 is connected to the water source, the water source is started, and the spray is ejected through the spraying plate 302. At the same time, the three connecting plates of the spraying plate 302 correspond to three spraying angles, increasing the coverage range and reducing the spray blind area. When cleaning the inside of the spraying device 3, the sealing cover 303 is disassembled, and the inside can be cleaned.

[0034] Embodiment 2: Please refer to Figures 2-4 , on the basis of Embodiment 1, the following structure is further provided:

[0035] The limiting device 4 includes a housing 401, a positioning rod 402, a return spring 404, and a limiting block 405. The housing 401 is a hollow shell with an opening to the right. The housing 401 is the main support structure of the limiting device 4, forming a hollow shell that provides support and a fixed position for the internal components, provides stable support, and ensures the normal operation of the internal components of the device. A hole is provided at the left end of the housing 401, and the positioning rod 402 is arranged in the hole and is slidably fitted with the housing 401. The top end of the positioning rod 402 is inserted with a limiting rod 403. The positioning rod 402 slides in the housing 401, and a limiting rod 403 is inserted at its top end to limit the position and prevent the positioning rod 402 from sliding out of the housing 401. At the same time, the bottom end is connected to the limiting block 405 and is linked with the limiting block 405. The limiting rod 403 abuts against the housing 401. The bottom end of the positioning rod 402 is connected to the limiting block 405, and the limiting block 405 is slidably fitted with the housing 401. The limiting block 405 abuts against the sealing cover 303. The limiting block 405 limits the movement range of the sealing cover 303 and improves the sealing performance at the same time. A return spring 404 is arranged between the limiting block 405 and the inner wall of the housing 401. The return spring 404 provides a return force, enabling the limiting block 405 to automatically return to the initial position after being moved, ensuring the automatic recovery function of the device after operation, and improving the reliability and stability of the device. The return spring 404 is sleeved on the positioning rod 402, with one end abutting against the limiting block 405 and the other end abutting against the inner wall of the housing 401.

[0036] The contact end of the limiting block 405 with the sealing cover 303 extends towards the middle of the sealing cover 303, which is used to improve the sealing performance of the sealing cover 303, helps to increase the sealing performance of the sealing cover 303, and avoids leakage.

[0037] Extension parts are respectively arranged at the upper and lower ends of the contact end of the outer shell 401 with the fixing plate 301. Positioning holes are formed in the extension parts, and threaded rods are arranged in the positioning holes. The threaded rods are screwed into the threaded holes preset on the fixing plate 301, so that the outer shell 401 is firmly connected to the fixing plate 301, and the right end of the outer shell 401 and the front end of the fixing plate 301 are on the same axis, avoiding blocking the installation of the sealing cover 303.

[0038] The limiting block 405 is trapezoidally arranged. The inclined end is used to reduce friction and facilitate the installation of the sealing cover 303. Its vertical end abuts against the sealing cover 303. When the sealing cover 303 is installed, the inclined end abuts against the outside of the sealing cover 303. The inclined design facilitates sliding into the installation position during installation, reduces the frictional force, and facilitates the installation of the sealing cover 303. At the same time, the vertical end fits with the sealing cover 303 to increase the sealing performance and prevent the sealing cover 303 from sliding. During use, first, the outer shell 401 is screwed into the threaded hole preset on the fixing plate 301 through the threaded rod to form an integral body of the outer shell 401 and the fixing plate 301. Subsequently, when the sealing cover 303 is installed, the sealing cover 303 abuts against the inclined end of the limiting block 405, and the limiting block 405 slides in the outer shell 401 while squeezing the return spring 404. After the sealing cover 303 is installed, the return spring 404 restores the limiting block 405 through elastic potential energy, and the vertical end of the limiting block 405 abuts against the sealing cover 303 for limiting and fixing. During disassembly, pull the limiting rod 403 to drive the positioning rod 402 to slide, and at the same time, the positioning rod 402 drives the limiting block 405 to slide, and then the sealing cover 303 can be disassembled.

[0039] Embodiment 3: Please refer to Figures 5-6 , on the basis of Embodiment 1, the following structure is further provided:

[0040] The spray head 304 is internally fitted with a baffle plate 306. The baffle plate 306 plays a role in adjusting the liquid flow direction and spray effect, and can be installed and disassembled through a connecting rod. There is a gap between the inner wall of the baffle plate 306 and the inner wall of the spray head 304. Vertically arranged guide grooves are formed at an angle on the inner wall of the spray head 304. Guide blocks 307 that are uniformly connected at an angle to the outer circumference of the baffle plate 306 are matched with the guide grooves. The guide blocks 307 are slidably fitted in the guide grooves. A fitting groove 308 is formed at the end of the guide groove and is arranged on the inner wall of the spray head 304. The guide blocks 307 are rotatably fitted in the fitting groove 308. The upper and lower ends of the guide blocks 307 respectively abut against the inner wall of the fitting groove 308. A connecting rod is arranged in the middle of the baffle plate 306 for installing and disassembling the baffle plate 306. When installing the baffle plate 306, first, the guide blocks 307 on the outer circumference of the baffle plate 306 are fitted with the guide grooves through the connecting rod. At the same time, the connecting rod is pressed to slide the baffle plate 306 into the fitting groove 308. Then, the connecting rod is rotated to rotate the baffle plate 306, and at the same time, the guide blocks 307 are rotated to be misaligned with the guide grooves to prevent slipping out. At the same time, the guide blocks 307 abut against the inner wall of the fitting groove 308 to increase the friction force and prevent slipping out due to rotation. After installing the baffle plate 306, the water mist generated by the spray head 304 is in a fan shape. When direct spraying is required, the position of the baffle plate 306 can be adjusted by rotating the connecting rod. After aligning the baffle plate 306 with the guide blocks 307 and the guide grooves, the baffle plate 306 can be pulled out. This design effectively increases the spraying surface and spraying distance, and improves the efficiency and coverage range of the spray system.

[0041] The above are only embodiments of the present invention. Specific structures and common knowledge such as characteristics well known in the art are not described in detail herein. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An in-line spraying system, characterized in that: It includes a fully-mechanized mining unit (1), a spraying device (3), and a limiting device (4). Threaded holes are reserved on the fully-mechanized mining unit (1). A bottom plate (2) is connected to the top end of the fully-mechanized mining unit (1). Through holes are symmetrically arranged on the left and right sides of the bottom plate (2). Screw rods are arranged in the through holes. The screw rods penetrate through the bottom plate (2) and are screwed into the threaded holes of the fully-mechanized mining unit (1). The spraying device (3) is connected to the bottom plate (2), and the limiting device (4) is connected to the spraying device (3). The spraying device (3) includes a fixing plate (301), a spraying plate (302), and a sealing cover (303). The fixing plate (301) is vertically arranged on the bottom plate (2). A linkage hole is provided at the rear end of the fixing plate (301), and a water source connector (305) is arranged in the linkage hole. The spraying plate (302) is formed by sequentially connecting three connecting plates arranged at an angle. The bottom end of the spraying plate (302) is connected to the bottom plate (2), and the top end is connected to the fixing plate (301). A cavity is formed among the fixing plate (301), the spraying plate (302), and the bottom plate (2). A number of spray holes are provided on the spraying plate (302), and spray heads (304) are respectively connected to the spray holes. A baffle is fixedly connected to one end of the fixing plate (301) and the spraying plate (302), and the other end is fitted with a sealing cover (303). The sealing cover (303) abuts against the limiting device (4). The limiting device (4) includes a housing (401), a positioning rod (402), a return spring (404), and a limiting block (405). The housing (401) is a hollow shell with an opening to the right. A hole is provided at the left end of the housing (401), and the positioning rod (402) is arranged in the hole and is slidably fitted with the housing (401). A limiting rod (403) is inserted at the top end of the positioning rod (402), and the limiting rod (403) abuts against the housing (401). The bottom end of the positioning rod (402) is connected to the limiting block (405), and the limiting block (405) is slidably fitted with the housing (401). The limiting block (405) abuts against the sealing cover (303). A return spring (404) is arranged between the inner wall of the housing (401) of the limiting block (405) and is sleeved on the positioning rod (402). One end of the return spring (404) abuts against the limiting block (405), and the other end abuts against the inner wall of the housing (401).

2. The unitized spray system according to claim 1, wherein: The connecting plate includes a first connecting plate, a second connecting plate, and a third connecting plate. The first connecting plate is obliquely arranged on the bottom plate (2). The angle between the second connecting plate and the first connecting plate is 130°. The included angle between the third connecting plate and the second connecting plate is 140°. The top end of the third connecting plate is connected to the fixing plate (301).

3. The unitized spray system according to claim 1, wherein: Sealing strips are provided at the contact ends of the sealing cover (303) with the fixing plate (301) and the spraying plate (302) to prevent the water source in the cavity from flowing out.

4. The in-line spraying system according to claim 1, wherein: The contact end of the limiting block (405) with the sealing cover (303) extends towards the middle of the sealing cover (303) to improve the sealing performance of the sealing cover (303).

5. The in-line spraying system according to claim 4, characterized in that: The limiting block (405) is trapezoidally arranged, and its inclined end is used to reduce friction, facilitating the installation of the sealing cover (303), and its vertical end abuts against the sealing cover (303).

6. The unitized spray system according to claim 1, wherein: The water source joint (305) is connected to the water source through a hose, and a check valve is arranged thereon to prevent the water source in the cavity from flowing back.

7. The unitized spray system according to claim 1, wherein: A baffle plate (306) is embedded in the spray head (304), and a gap is left between the baffle plate (306) and the inner wall of the spray head (304). Vertically arranged guiding grooves are formed at an angle on the inner wall of the spray head (304). Guiding blocks (307) that are uniformly connected at an angle to the outer circumference of the baffle plate (306) and are matched with the guiding grooves are provided. The guiding blocks (307) are slidably matched with the guiding grooves. A fitting groove (308) is formed at the cut-off end of the guiding groove and is arranged on the inner wall of the spray head (304). The guiding blocks (307) are rotatably matched with the fitting groove (308), and the upper and lower ends of the guiding blocks (307) respectively abut against the inner wall of the fitting groove (308).

8. The in-line spraying system according to claim 7, characterized in that: A connecting rod is arranged in the middle of the baffle plate (306) for installing and disassembling the baffle plate (306).

9. The unitized spray system according to claim 1, characterized in that: Extension parts are respectively arranged at the upper and lower ends of the contact end between the outer shell (401) and the fixing plate (301). Positioning holes are formed in the extension parts, and threaded rods are arranged in the positioning holes and are screwed into threaded holes preset on the fixing plate (301).

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