Dredging device for maintenance of coal mill nozzle

Abstract

The utility model relates to the technical field of coal mills, in particular to a dredging device for coal mill nozzle maintenance, which comprises a box body, a cleaning assembly and a flushing assembly, the cleaning assembly comprises a sleeve arranged at the top of the box body in a penetrating and sleeving mode through a bearing and a driving motor installed in the box body through an installation frame, and cleaning brushes are fixed to the outer side of the sleeve at equal intervals through bolts. A flushing assembly is arranged in the box body, the flushing assembly comprises a vertical pipe arranged in the sleeve in a penetrating mode, the top end of the vertical pipe is connected with a water outlet cover through a threaded groove, and the bottom end, located in the box body, of the vertical pipe is connected with a booster pump through a threaded groove; the driving motor works to drive the multiple cleaning brushes on the outer side of the sleeve to rotate, the interior of the nozzle is brushed, water flow is sprayed out from the vertical pipe and the water outlet cover after being pressurized by the booster pump, the interior of the nozzle can be washed, and the dredging efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coal mill technical field, concretely relates to a dredging device for coal mill nozzle maintenance. BACKGROUND

[0002] The coal mill is a kind of equipment for grinding coal and other solid fuels into powder, mainly composed of grinding disc, grinding roller and other components. Its main function is to crush and grind coal and other materials for better combustion or other applications. However, in the system of the coal mill, nozzles are used to spray water, air mixture and other mixtures.

[0003] Currently, the coal mill needs to be cleaned and maintained after long-term use, and the dredging of the nozzle is particularly important to prevent the nozzle from being blocked. However, the existing nozzle dredging is manually cleaned with tools, and then rinsed with clean water. The equipment is scattered, so a dredging device for coal mill nozzle maintenance is proposed, which integrates the rotating cleaning brush and the standpipe for rinsing together, facilitating the cleaning and rinsing of the nozzle, and improving the nozzle dredging efficiency. SUMMARY

[0004] To solve the problems in the prior art, the utility model provides a dredging device for coal mill nozzle maintenance, which integrates the rotating cleaning brush and the standpipe for rinsing together, facilitating the cleaning and rinsing of the nozzle, and improving the nozzle dredging efficiency.

[0005] The utility model solves the technical problems by adopting the technical scheme of a dredging device for coal mill nozzle maintenance, which includes a box body, a cleaning assembly and a rinsing assembly. The box body is provided with a cleaning assembly on the top. The cleaning assembly includes a sleeve penetrating the top of the box body through a bearing and a drive motor installed inside the box body through a mounting bracket. The outer side of the sleeve is fixed with cleaning brushes at equal intervals by bolts.

[0006] The box body is provided with a rinsing assembly inside. The rinsing assembly includes a standpipe penetrating the inside of the sleeve. The top end of the standpipe is connected with a water outlet cover through a threaded groove. The bottom end of the standpipe inside the box body is connected with a booster pump through a threaded groove.

[0007] By adopting the above technical scheme, the drive motor drives the rotation of the multiple cleaning brushes on the outer side of the sleeve, which cleans the inside of the nozzle. The water is pressurized by the booster pump and sprayed from the standpipe and the water outlet cover, which rinses the inside of the nozzle.

[0008] Specifically, the box body is welded with a sheath on the top. The top of the box body outside the sheath is glued with a sealing pad. The sleeve penetrates the sheath.

[0009] Specifically, the top of the water outlet cover and the outside of the riser are provided with through holes, and the outer side of the sleeve located between the water outlet covers is provided with a reserved groove.

[0010] Specifically, the inlet of the booster pump is connected to a valve via a threaded groove, the valve being located on the outside of the housing, and the outlet of the booster pump is connected to the bottom of the riser via a pipe joint.

[0011] Specifically, a second gear is fitted onto the outer side of the sleeve inside the housing, and a first gear is fixedly fitted onto the top output shaft of the drive motor via a flat key. The first gear and the second gear mesh with each other.

[0012] Specifically, the enclosure is hinged to have an inspection door.

[0013] The beneficial effects of this utility model are:

[0014] The present invention discloses a dredging device for repairing coal mill nozzles. The nozzle to be dredged is placed on the outside of a sleeve. The drive motor is turned on and drives the sleeve to rotate through the first gear and the second gear. The rotation of the sleeve drives multiple cleaning brushes on its outside to rotate and clean the inside of the nozzle.

[0015] The present invention describes a dredging device for repairing coal mill nozzles. By opening the valve and the booster pump, external clean water is pressurized by the booster pump and flows into the riser pipe. Then, it is sprayed out through multiple through holes on the riser pipe and the water outlet cover. The pressurized clean water is sprayed into the nozzle to flush its interior. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the box body of this utility model;

[0019] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the flushing assembly structure of this utility model;

[0021] In the diagram: 1. Housing; 2. Sheath; 3. Cleaning assembly; 301. Sleeve; 302. Drive motor; 303. Cleaning brush; 304. Reserved slot; 305. First gear; 306. Second gear; 4. Flushing assembly; 401. Riser; 402. Booster pump; 403. Water outlet cover; 404. Through hole; 405. Valve; 5. Sealing gasket; 6. Inspection door. Detailed Implementation

[0022] In order to make the technical means, creation characteristics, achieve purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] The rotating cleaning brush and the stand pipe for flushing are integrated together, the nozzle is conveniently cleaned and flushed, and the nozzle dredging efficiency can be improved. Figures 1-4 As shown in the utility model, a kind of dredging device for coal mill nozzle maintenance, including box 1, cleaning assembly 3 and flushing assembly 4, the box 1 top is provided with cleaning assembly 3, the cleaning assembly 3 includes the sleeve pipe 301 of being set on the top of box 1 by bearing penetration and the drive motor 302 of being installed in the inside of box 1 by mounting bracket, the sleeve pipe 301 outside is equidistantly fixed with cleaning brush 303 by bolt;

[0024] The box 1 inside is provided with flushing assembly 4, the flushing assembly 4 includes the stand pipe 401 of being set in the inside of sleeve pipe 301, the stand pipe 401 top is connected with water outlet cover 403 by thread groove, the bottom end of the stand pipe 401 in the inside of box 1 is connected with booster pump 402 by thread groove.

[0025] When using, drive motor 302 works and drives sleeve pipe 301 its outside multiple cleaning brush 303 rotation, cleaning nozzle inside, water is pressurized from stand pipe 401 and water outlet cover 403 after pressurization by booster pump 402, can flush nozzle inside.

[0026] Exemplarily, as shown in the utility model, Figure 2 The utility model still includes, the box 1 top is welded with sheath 2, the box 1 top cementation is equipped with sealing washer 5 in the outside of sheath 2, the sleeve pipe 301 penetrates sheath 2.

[0027] When using, the setting of sheath 2 can improve its structural stability without affecting the rotation of sleeve pipe 301, so that it is not easy to skew.

[0028] Exemplarily, as shown in the utility model, Figure 4 The utility model still includes, the water outlet cover 403 top and the outside of stand pipe 401 are all set with through hole 404, the outside of sleeve pipe 301 between water outlet cover 403 is set with reservation groove 304.

[0029] When using, the setting of through hole 404 is convenient for water flow in stand pipe 401 and water outlet cover 403, the setting of reservation groove 304 is convenient for water flow from sleeve pipe 301.

[0030] Exemplarily, as shown in the utility model, Figure 4As shown, the present invention also includes a valve 405 connected to the inlet end of the booster pump 402 via a threaded groove. The valve 405 is located outside the housing 1. The outlet end of the booster pump 402 is connected to the bottom end of the riser pipe 401 via a pipe joint.

[0031] When in use, the booster pump 402 pressurizes the water flow and delivers it to the riser pipe 401.

[0032] For example, such as Figure 3 As shown, this utility model also includes a second gear 306 sleeved on the outer side of the sleeve 301 inside the housing 1, and a first gear 305 fixedly sleeved on the top output shaft of the drive motor 302 via a flat key, wherein the first gear 305 and the second gear 306 mesh with each other.

[0033] In use, the drive motor 302 drives the sleeve 301 to rotate through the first gear 305 and the second gear 306.

[0034] For example, such as Figure 1 As shown, the present invention also includes an inspection door 6 hinged to the housing 1.

[0035] When in use, the booster pump 402, drive motor 302, etc. inside the housing 1 can be maintained by opening the inspection door 6.

[0036] When using this utility model, the user connects the device to an external power source using a power cord and connects valve 405 to an external water supply device using a water pipe.

[0037] Personnel hold the nozzle and put it over the outside of the sleeve 301, and press the bottom of the nozzle onto the sealing gasket 5, which seals the nozzle and the sleeve 2.

[0038] When the drive motor 302 is turned on, it drives the sleeve 301 to rotate through the first gear 305 and the second gear 306. The rotation of the sleeve 301 drives the multiple cleaning brushes 303 on its outer side to rotate, cleaning the inside of the nozzle.

[0039] Open valve 405 and booster pump 402 to allow external clean water to be pressurized by booster pump 402 and flow into riser pipe 401. Then, it is sprayed out through multiple through holes 404 on riser pipe 401 and water outlet cover 403. Pressurized clean water is sprayed into nozzles to rinse the inside.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clearing device for servicing a coal mill nozzle, characterized in that, Including box (1), cleaning assembly (3) and flush assembly (4), the top of the box (1) is provided with cleaning assembly (3), the cleaning assembly (3) includes sleeve (301) through bearing penetration set in the top of the box (1) and drive motor (302) installed in the inside of the box (1) through mounting bracket, the outside of the sleeve (301) is fixed with cleaning brush (303) by bolt etc. The inside of the box (1) is provided with flush assembly (4), the flush assembly (4) includes stand pipe (401) through setting in the inside of the sleeve (301), the top of the stand pipe (401) is connected with water outlet cover (403) through thread groove, the bottom end of the stand pipe (401) in the inside of the box (1) is connected with booster pump (402) through thread groove.

2. A de-clogging device for servicing a coal mill nozzle according to claim 1, characterised in that, The top of the box (1) is welded with sheath (2), the top of the box (1) is glued with sealing pad (5) outside the sheath (2), the sleeve (301) penetrates the sheath (2).

3. A cleaning device for a coal mill nozzle according to claim 1, characterised in that, The top of the water outlet cover (403) and the outside of the stand pipe (401) are both provided with through hole (404), the outside of the sleeve (301) between the water outlet cover (403) is provided with reserved slot (304).

4. A cleaning device for a coal mill nozzle according to claim 1, characterised in that, The water inlet end of the booster pump (402) is connected with valve (405) through thread groove, the valve (405) is located outside the box (1), the water outlet end of the booster pump (402) is connected with the bottom end of the stand pipe (401) through pipeline joint.

5. A cleaning device for a coal mill nozzle according to claim 1, wherein The outside of the sleeve (301) in the inside of the box (1) is sleeved with second gear (306), the top output shaft of the drive motor (302) is fixed with first gear (305) through flat key, the first gear (305) and the second gear (306) are engaged.

6. A cleaning device for a coal mill nozzle according to claim 1, wherein The box (1) is hinged with access door (6) through hinge.

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