Mixing and spraying device of novel spraying material for coal mine tunnel

Abstract

The utility model relates to the technical field of spraying equipment, and discloses a mixing and spraying device of novel spraying materials for a coal mine tunnel, which comprises a device body, a cover body, a partition plate I, a stirring cavity, a stirring mechanism, a feeding mechanism, a heating cavity, a heating mechanism, a through hole, an electric control valve, a storage box, a spraying mechanism and a control panel. The spraying device is simple in structure and high in creativity, spraying materials are evenly mixed through the stirring mechanism, the circulation performance of airflow and the even mixing effect are enhanced through the ventilation net in the even mixing process, the spraying materials are heated to be in a fluid state through the heating cavity after being evenly mixed and then sprayed out through the spraying mechanism, and therefore even mixing and spraying integration of the spraying materials is achieved; and the device is convenient to use and has very high economic benefits and use values.

Description

TECHNICAL FIELD

[0001] The utility model relates to spraying equipment technical field, more specifically, it relates to a new type of mixed spraying device of spraying material for coal mine roadway. BACKGROUND

[0002] Coal mine underground roadway coal measures strata are mostly coal rock, sandstone, shale, mudstone and clay rock, not only the mechanical properties of rock are poor, but also the joint fissure is developed, and the stability is not good. The sandstone, sandy shale or argillaceous sandstone of various particle sizes in the surrounding rock of coal mine roadway is extremely easy to weather, water absorption softening, even argillization, disintegration and expansion. The coal mine underground space is narrow, the environment is bad, the coal rock wall is uneven and humid, the seepage water is universal, the rock mass produces deformation after the roadway excavation, and the gas will gush or overflow in the roadway driving process. The exposed end of metal net and anchor rod, anchor cable is easy to rust, which reduces the constraint force of surrounding rock. Therefore, the sealing treatment of the roadway surface is very important for maintaining the long-term stability of the roadway. The spraying material must meet the following performance requirements: fast spraying speed, small influence on driving, reducing the working hours of spraying operation in roadway construction; strong adhesion, which can quickly and firmly bond rock, metal material, plastic and the like; good airtightness, which can effectively prevent water and gas overflow; the sprayed layer has good flexibility, high bending and shear strength; no dust and low rebound rate during spraying construction; the material is non-toxic, odorless, flame-retardant, anti-static, safe, environmentally friendly and low in cost; and the traditional single coating layer may not meet the above requirements. The current coal mine underground roadway spraying material is transported into the underground mine, and the cement, sand and gravel are dry mixed and stirred on site, then the spraying machine is used, the wind power conveying mode is adopted, the cement material is mixed with water at the gun port of the spraying machine, and is sprayed on the mined layer rock. After the cement material solidifies, the sealing and supporting effect is achieved.

[0003] However, the sealing of the roadway by the cement mortar has the following disadvantages: first, the solidification period of the cement mortar is long during the laying, and the laying cannot be quickly followed by the mining; second, the solidified cement mortar has large brittleness and poor stability, and the sealing effect of the cement mortar is poor, and the gas can penetrate the mortar layer to leak, thereby affecting the personal safety of the mining personnel; third, the thickness of the cement mortar laying is large, which occupies the space of the narrow roadway, and is not conducive to the construction process.

[0004] Therefore, this mode is not suitable for the construction of the new type of plastic spraying material, and the processing of the multi-layer coating needs to be applied to the thermal spraying mode, and the existing spraying equipment cannot meet the use requirements. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a kind of mixing spraying device of novel spraying material for coal mine roadway, by being set up stirring mechanism to spray material is mixed uniformly, the flowability of airflow is strengthened in mixing process by air-permeable net, and mixing effect is enhanced, spraying material is heated to fluid state after mixing by heating cavity, and then it is sprayed by spraying mechanism, to realize the mixing and spraying integration of spraying material, convenient to use.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a kind of mixing spraying device of novel spraying material for coal mine roadway, including device body, device body is hollow cylinder, the top of device body is open, and the top of device body is equipped with cover;Device body is equipped with baffle one inside, and the side wall of device body, cover and baffle one form stirring chamber, and stirring chamber is equipped with stirring mechanism;The side of the top end of device body is equipped with feeding mechanism, and feeding mechanism is connected with stirring chamber;The bottom wall and side wall of device body and baffle one form heating cavity, and heating cavity is equipped with heating mechanism;Baffle one is equipped with the through hole of stirring chamber and heating cavity, and electric control valve is arranged in through hole, and the bottom of heating cavity is equipped with storage box;The side of the bottom end of device body is equipped with spraying mechanism;The outside wall of device body is equipped with control panel, and control panel is electrically connected with electric control valve;

[0007] Stirring mechanism includes rotary motor arranged on the top of cover, rotary motor is electrically connected with control panel, the bottom of rotary motor is equipped with shaft one, shaft one passes through cover and extends into stirring chamber, and the outside wall of shaft one is equipped with a plurality of stirring blades one, which are evenly spaced along the length direction of shaft one;

[0008] Heating mechanism includes annular heating wall arranged on the bottom of baffle, and the outside wall of heating wall is equipped with heating pipe, and heating pipe is electrically connected with control panel;

[0009] Spraying mechanism includes pressure pump, spray head and conveying pipe connected between pressure pump and spray head, and pressure pump is arranged in storage box, and the outer wall of conveying pipe is equipped with heat preservation assembly.

[0010] Further, feeding mechanism includes feeding hopper and feeding pipe connected with stirring chamber, and baffle two is arranged in feeding hopper, baffle two divides feeding port of feeding hopper into feeding port one and feeding port two, and screen is arranged in feeding port one.

[0011] Further, stirring chamber is equipped with round plate, round plate is equipped with perforation for shaft one, the outer wall of shaft one is equipped with gear one located on the top of round plate, and the top of round plate is further equipped with a plurality of gears two, which are engaged with gear one and evenly spaced along the circumferential direction of gear one;The bottom of gear two is equipped with shaft two, and the outside wall of shaft two is equipped with a plurality of stirring blades two, which are evenly spaced along the length direction of shaft one.

[0012] Further, the heat preservation assembly comprises a heat preservation cylinder and a base arranged at the bottom of the sidewall of the device body, the heat preservation cylinder is arranged at the top of the base, a connecting piece is arranged between the heat preservation cylinder and the base, and the conveying pipe sequentially penetrates through the base, the connecting piece and the heat preservation cylinder.

[0013] Further, the heat preservation cylinder is internally provided with an electric heating wire arranged around the conveying pipe, and the electric heating wire is electrically connected with the control panel.

[0014] Further, the top end of the sidewall of the device body is provided with a breathable mesh.

[0015] Further, the heating wall is made of a heat-conducting material, and the bottom of the heating wall is provided with a flow guide pipe.

[0016] In summary, the utility model has the following beneficial effects:

[0017] (1) the device drives the rotating shaft one and the stirring blade one to rotate through the rotating motor, and the mixing purpose is achieved by stirring the spraying material, the device is provided with a breathable mesh, the flow circulation of the airflow is enhanced during the mixing process, and the mixing effect is enhanced;

[0018] In order to achieve better mixing effect, the device is provided with a plurality of rotating shaft two and stirring blade two, when the rotating motor is started, the rotating shaft one rotates, drives the gear one to rotate, drives a plurality of gear two on the disc to rotate, thereby drives the rotating shaft two connected with the gear two to rotate, and the plurality of rotating shaft two rotates together with the rotating shaft one, thereby enhancing the mixing effect of the spraying material.

[0019] (2) the device is provided with a heating cavity, the spraying material after mixing can be heated, so that it becomes a fluid, and spraying is facilitated; the device is also provided with a heat preservation assembly, so that the flow circulation of the spraying material in the conveying pipe is not affected in the case of low temperature.

[0020] (3) the feeding mechanism arranged in the device is divided into feeding port one and feeding port two, which are respectively used for adding granular device spraying raw materials and liquid spraying spraying materials, a screen is arranged in the feeding port one, which is used for screening out large particle spraying raw materials, and the mixing effect of the spraying material is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a three-dimensional structure schematic view of a novel spraying material mixing and spraying device for a coal mine tunnel in an embodiment of the utility model;

[0022] Figure 2 is a structure schematic view of a front view of a novel spraying material mixing and spraying device for a coal mine tunnel in an embodiment of the utility model;

[0023] Figure 3 is a three-dimensional structure schematic view of a stirring mechanism in an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the heat preservation cylinder in an embodiment of this utility model;

[0025] In the diagram: 1. Device body; 2. Cover; 3. Partition plate 1; 4. Stirring chamber; 5. Stirring mechanism; 501. Rotary motor; 502. Rotating shaft 1; 503. Stirring blade 1; 504. Circular plate; 505. Perforation; 506. Gear 1; 507. Gear 2; 508. Rotating shaft 2; 509. Stirring blade 2; 6. Feeding mechanism; 601. Feed hopper; 602. Feed pipe; 603. Partition plate 2; 604. Feed inlet 1; 605. Material inlet 2; 606, screen; 7, heating chamber; 8, heating mechanism; 801, heating wall; 802, heating tube; 803, guide tube; 9, through hole; 10, electrically controlled valve; 11, storage box; 12, spraying mechanism; 1201, pressure pump; 1202, spray nozzle; 1203, conveying pipe; 1204, insulation cylinder; 1205, base; 1206, connector; 1207, heating wire; 13, control panel; 14, breathable mesh. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail below.

[0027] Example: A mixing spraying device for a novel spraying material used in coal mine roadways, such as... Figures 1 to 4 As shown, the device includes a device body 1, which is a hollow cylindrical shape with an opening at the top. A removable cover 2 is installed on the top of the device body 1. A partition 3 is integrally installed inside the device body 1. The side walls of the device body 1, the cover 2, and the partition 3 together form a stirring chamber 4, and a stirring mechanism 5 is installed inside the stirring chamber 4. A feeding mechanism 6 is fixedly installed on one side of the top of the device body 1 and is connected to the stirring chamber 4. The bottom wall and side walls of the device body 1, together with the partition 3, form a heating chamber 7, and a heating mechanism 8 is installed inside the heating chamber 7. The partition 3 has a through hole 9 connecting the stirring chamber 4 and the heating chamber 7. An electrically controlled valve 10 is installed in the through hole 9. A storage box 11 is installed at the bottom of the heating chamber 7. A spraying mechanism 12 is installed on one side of the bottom of the device body 1. A control panel 13 is installed on the outer side wall of the device body 1. The control panel 13 is electrically connected to the electrically controlled valve 10, and the opening and closing of the electrically controlled valve 10 can be controlled by operating the control panel 13.

[0028] The stirring mechanism 5 comprises a rotary motor 501 arranged on the top of the cover 2, the rotary motor 501 is electrically connected with the control panel 13, the rotary motor 501 can be started and stopped by operating the control panel 13, the bottom of the rotary motor 501 is provided with a rotating shaft 502, the rotating shaft 502 is driven to rotate when the rotary motor 501 is started, the rotating shaft 502 penetrates through the cover 2 and extends into the stirring cavity 4, a plurality of stirring blades 503 are arranged on the outer wall of the rotating shaft 502 and are uniformly distributed along the length direction of the rotating shaft 502, the stirring blades 503 comprise a plurality of blades arranged along the circumferential direction of the rotating shaft 502.

[0029] The heating mechanism 8 comprises an annular heating wall 801 arranged on the bottom of the partition plate, the outer wall of the heating wall 801 is provided with a heating pipe 802, the heating pipe 802 is electrically connected with the control panel 13, the heating pipe 802 can be started and stopped by operating the control panel 13.

[0030] The spraying mechanism 12 comprises a pressurizing pump 1201, a spray head 1202 and a conveying pipe 1203 connecting the pressurizing pump 1201 and the spray head 1202, the pressurizing pump 1201 is arranged in the storage box 11, the outer wall of the conveying pipe 1203 is provided with a heat preservation assembly.

[0031] As a preferred scheme of the embodiment, the feeding mechanism 6 comprises a feeding hopper 601 and a feeding pipe 602 connected with the stirring cavity 4, the partition plate 603 is fixedly arranged in the feeding hopper 601, the feeding hopper 601 is divided into a feeding port 604 and a feeding port 605 by the partition plate 603, and the screen 606 is fixedly arranged in the feeding port 604.

[0032] By adopting the above technical scheme, the feeding port 604 and the feeding port 605 are respectively used for adding the granular spraying raw material and the liquid spraying material, the screen 606 arranged in the feeding port 604 is used for screening out the large granular spraying raw material, and the mixing effect of the spraying material is enhanced.

[0033] As a preferred scheme of the embodiment, the stirring cavity 4 is provided with a circular plate 504, the circular plate 504 is provided with a through hole 505 for the rotating shaft 502 to penetrate through, the rotating shaft 502 is sleeved with a gear 506 arranged on the top of the circular plate 504, the gear 506 is fixedly connected with the rotating shaft 502, a plurality of gears 507 are arranged on the top of the circular plate 504, the gears 507 are engaged with the gear 506 and are uniformly distributed along the circumferential direction of the gear 506, the bottom of the gear 507 is fixedly provided with a rotating shaft 508, and a plurality of stirring blades 509 are arranged on the outer wall of the rotating shaft 508 and are uniformly distributed along the length direction of the rotating shaft 502.

[0034] By adopting the above technical scheme, when the rotary motor 501 starts, the rotating shaft 502 rotates, drives the gear 506 to rotate, drives the plurality of gear 507 on the disc to rotate, thereby driving the rotating shaft 508 connected with the gear 507 to rotate, and the plurality of rotating shaft 508 rotates together with the rotating shaft 502, thereby enhancing the mixing effect of the spraying material.

[0035] As a preferred scheme of the present embodiment, the heat preservation assembly comprises a heat preservation cylinder 1204 and a base 1205 arranged at the bottom of the sidewall of the device body 1, the heat preservation cylinder 1204 is arranged at the top of the base 1205, and a connecting piece 1206 is fixedly installed between the heat preservation cylinder 1204 and the base 1205, and the conveying pipe 1203 passes through the base 1205, the connecting piece 1206 and the heat preservation cylinder 1204 in sequence.

[0036] As a preferred scheme of the present embodiment, the heat preservation cylinder 1204 is internally provided with an electric heating wire 1207 arranged around the conveying pipe 1203, and the electric heating wire 1207 is electrically connected with the control panel 13.

[0037] By adopting the above technical scheme, the flowability of the spraying material in the conveying pipe 1203 is avoided to be affected in the case of lower temperature.

[0038] As a preferred scheme of the present embodiment, the top end of the sidewall of the device body 1 is provided with a breathable net 14.

[0039] By adopting the above technical scheme, the flowability of the airflow is enhanced during the mixing process through the breathable net 14, and the mixing effect is enhanced.

[0040] As a preferred scheme of the present embodiment, the heating wall 801 is made of heat-conducting material, and the bottom of the heating wall 801 is provided with a flow guide pipe 803.

[0041] By adopting the above technical scheme, the heating wall 801 made of heat-conducting material can better conduct heat, thereby enhancing the heating effect on the mixed spraying material.

[0042] Working principle: the device in use, by feeding hopper 601 to add spray material, solid spray material is added through the feed port one 604, in which the large particles of spray material is screened out by screen 606, liquid spray material is directly added through the feed port two 605; after adding the spray material into the stirring cavity 4 through the feed pipe 602, start the rotating motor 501 when starting stirring, rotating motor 501 starts, the rotating shaft one 502 rotates, drives gear one 506 to rotate, drives multiple gear two 507 on the disc to rotate, thereby driving the rotating shaft two 508 connected with gear two 507 to rotate, multiple rotating shaft two 508 rotate with rotating shaft one 502, and the mixing operation is carried out; after the spray material is mixed, open the electric control valve 10, and the spray material enters the heating cavity 7 to heat, and the heated spray material becomes fluid and is temporarily stored in the storage box 11; when spraying is needed, the pressurized pump 1201 can be directly started, at this time the spray material is sprayed out by the spray head 1202 after passing through the conveying pipe 1203.

[0043] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A mixing and spraying device for a new type of sprayed material for coal mine galleries, characterized in that, The utility model provides a kind of device for preparing coating, including device body (1), the device body (1) is hollow cylinder, the top of the device body (1) is open, and the top of the device body (1) is equipped with cover (2);The device body (1) is equipped with baffle one (3), the lateral wall of the device body (1), cover (2) and baffle one (3) form stirring cavity (4), and the stirring cavity (4) is equipped with stirring mechanism (5);The top of the device body (1) one side is equipped with feeding mechanism (6), and the feeding mechanism (6) is connected with stirring cavity (4) in communication;The bottom wall and lateral wall of the device body (1) and baffle one (3) form heating cavity (7), and the heating cavity (7) is equipped with heating mechanism (8);Baffle one (3) is equipped with through hole (9) that communicates stirring cavity (4) and heating cavity (7), and the through hole (9) is equipped with electric control valve (10), and the bottom of the heating cavity (7) is equipped with storage box (11);The bottom of the device body (1) one side is equipped with spraying mechanism (12);The lateral wall of the device body (1) is equipped with control panel (13), and the control panel (13) is electrically connected with electric control valve (10); The stirring mechanism (5) includes rotary motor (501) arranged on the top of the cover (2), the rotary motor (501) is electrically connected with the control panel (13), the bottom of the rotary motor (501) is equipped with the first rotating shaft (502), the first rotating shaft (502) passes through the cover (2) and extends into the stirring cavity (4), and the lateral wall of the first rotating shaft (502) is equipped with a plurality of stirring blades (503) evenly spaced along the length direction of the first rotating shaft (502); The heating mechanism (8) includes annular heating wall (801) arranged on the bottom of the baffle, the lateral wall of the heating wall (801) is equipped with heating pipe (802), and the heating pipe (802) is electrically connected with the control panel (13); The spraying mechanism (12) includes pressure pump (1201), spray head (1202) and conveying pipe (1203) connecting the pressure pump (1201) and the spray head (1202), the pressure pump (1201) is arranged in the storage box (11), and the outer wall of the conveying pipe (1203) is equipped with heat preservation assembly.

2. The mixing and spraying device of a new type of spraying material for coal mine roadway according to claim 1, characterized in that, The feeding mechanism (6) includes feeding hopper (601) and feeding pipe (602) connected with the stirring cavity (4), the feeding hopper (601) is equipped with baffle two (603), the feeding hopper (601) is divided into feeding port one (604) and feeding port two (605) by baffle two (603), and the feeding port one (604) is equipped with screen (606).

3. The mixing and spraying device of a new type of spraying material for coal mine roadway in accordance with claim 1, characterized in that, The stirring cavity (4) is internally provided with a circular plate (504), the circular plate (504) is provided with a through hole (505) for the rotating shaft (502) to pass through, the outer wall of the rotating shaft (502) is sleeved with a gear (506) located at the top of the circular plate (504), the top of the circular plate (504) is further provided with a plurality of gears (507), the plurality of gears (507) are all engaged with the gear (506) and are uniformly distributed along the circumferential direction of the gear (506); the bottom of the gear (507) is provided with a rotating shaft (508), the outer side wall of the rotating shaft (508) is provided with a plurality of stirring blades (509) which are uniformly arranged along the length direction of the rotating shaft (502).

4. The mixing and spraying device of a new type of spraying material for coal mine tunnel according to claim 1, characterized in that, The heat preservation assembly comprises a heat preservation cylinder (1204) and a base (1205) arranged on the bottom of the sidewall of the device body (1), the heat preservation cylinder (1204) is arranged on the top of the base (1205), and the heat preservation cylinder (1204) and the base (1205) are provided with a connecting piece (1206); the conveying pipe (1203) sequentially passes through the base (1205), the connecting piece (1206) and the heat preservation cylinder (1204).

5. The mixing and spraying device of a new type of sprayed material for coal mine roadway according to claim 4, characterized in that, The heat preservation cylinder (1204) is internally provided with an electric heating wire (1207) arranged around the conveying pipe (1203), and the electric heating wire (1207) is electrically connected with the control panel (13).

6. The mixing and spraying device of a new type of sprayed material for coal mine roadway according to claim 1, characterized in that, The top end of the sidewall of the device body (1) is provided with a breathable net (14).

7. The mixing and spraying device of a new type of sprayed material for coal mine roadway according to claim 1, characterized in that, The heating wall (801) is made of heat-conducting material, and the bottom of the heating wall (801) is provided with a flow guide pipe (803).

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