CN213194036U

CN213194036U - Pulverized coal refining device

Info

Publication number: CN213194036U
Application number: CN202021459979.6U
Authority: CN
Inventors: 杨炳秀
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-05-14
Anticipated expiration: 2030-07-22

Abstract

The utility model is suitable for the technical field of coal grinding, and provides a pulverized coal refining device, which comprises a feed inlet, a discharge port, a support, a three-phase asynchronous motor, and is characterized by also comprising a crushing bin, a flange joint, a two-stage crushing impeller, a hot air blower, an air inlet pipe and a shaft coupling, wherein the feed inlet is communicated with the crushing bin, an impeller shaft of the two-stage crushing impeller is connected with the three-phase asynchronous motor through the shaft coupling in the crushing bin, a lower baffle plate and an upper baffle plate are arranged in the crushing bin, the left side of the crushing bin is connected with the hot air blower through the air inlet pipe, the side surface of the crushing bin is communicated with the discharge port, the flange joint is welded on the discharge port, and the coal briquette can not be stuck on the device in the crushing process through the drying of the hot air blower, and the pulverized coal can be fully crushed through the matching of the two-, the discharge hole is provided with a flange joint which can be directly butted with a downstream screening process.

Description

Pulverized coal refining device

Technical Field

The utility model belongs to the technical field of coal mine mechanical equipment, especially, relate to a buggy refines device.

Background

The energy structure of China is mainly coal, and is the biggest coal producing country and consuming country in the world. In the primary energy consumption composition, the coal accounts for about 70%, while the proportion in developed countries is only about 21% on average. Meanwhile, the energy utilization efficiency of China is relatively low, and the energy production and use are still extensive. The energy structure mainly based on coal is a main factor influencing the quality of the atmospheric environment in China. Coal is a relatively dirty energy source, and a large amount of sulfur dioxide, nitrogen oxides and smoke are discharged in the combustion process. Soot type pollution remains one of the main characteristics of atmospheric pollution in China. Therefore, how to utilize coal cleanly and efficiently is an important measure for effectively controlling PM2.5 emission and improving atmospheric environment quality. The coal blocks are crushed into coal powder and then combusted, so that the contact area of the coal and air can be increased, the coal is fully combusted, and the combustion efficiency is improved. However, many coals are easily stuck in the equipment in the crushing process due to overlarge humidity, and the pulverized coal particles are uneven in size and not fine enough.

SUMMERY OF THE UTILITY MODEL

The utility model provides a buggy refines device aims at solving the problem in the above-mentioned background art.

The utility model discloses a realize like this, a buggy refines device, including feed inlet, discharge gate, support, three-phase asynchronous motor, its characterized in that still includes broken storehouse, flange joint, the broken impeller of doublestage, air heater, air-supply line and shaft coupling, the broken impeller of doublestage is equipped with the impingement plate, the feed inlet with broken storehouse communicates each other, in broken storehouse the impeller shaft of the broken impeller of doublestage pass through the shaft coupling with three-phase asynchronous motor connects, install baffle and last baffle down in the broken storehouse, broken storehouse left side with the air heater passes through the air-supply line is connected, the side in broken storehouse with the discharge gate communicates each other, the welding on the discharge gate the flange joint.

Furthermore, the lower partition plate is positioned at one side close to the double-stage crushing impeller, and the upper partition plate is positioned at one side close to the hot air blower.

Still further, the coupling is a wafer coupling.

Further, the material of the impact plate is high manganese steel.

Still further, the material of the support is cast iron.

Furthermore, the flange joint is provided with a threaded hole.

Drawings

FIG. 1 is a schematic view of the overall structure of a pulverized coal refining apparatus;

FIG. 2 is a schematic view of a dual stage crushing impeller configuration;

FIG. 3 is a schematic view of a flange joint configuration;

fig. 4 is a sectional view of the inside of the crushing bin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, the utility model relates to a pulverized coal refines device, including feed inlet 1, discharge gate 2, support 3, three-phase asynchronous motor 4, a serial communication port, still include broken storehouse 5, flange joint 6, the broken impeller 7 of doublestage, air heater 8, air-supply line 9 and shaft coupling 10, feed inlet 1 communicates with broken storehouse 5 each other, the impeller shaft 72 of the broken impeller 7 of doublestage passes through shaft coupling 10 and is connected with three-phase asynchronous motor 4 in broken storehouse 5, install lower baffle 51 and last baffle 52 in the broken storehouse 5, broken storehouse 5 left side with air heater 8 passes through the air-supply line 9 and connects, the side and the discharge gate 2 of broken storehouse 5 communicate each other, welded flange joint 6 on the discharge gate 2. The lower partition plate 51 is positioned on the side close to the double-stage crushing impeller 7, and the lower partition plate 51 is positioned close to the double-stage crushing impeller 7 so that the coal can be sufficiently crushed. The upper partition plate 52 is positioned at one side close to the hot air blower 8, so that the retention time of hot air blown out by the hot air blower 8 in the crushing bin can be prolonged, and the drying effect of the coal blocks can be enhanced. The coupler 10 is a wafer coupler, and the use of the wafer coupler can ensure that the two-stage crushing impeller 7 is convenient to mount and dismount, and the good coaxiality of the two-stage crushing impeller and the output shaft of the three-phase asynchronous motor 4 is ensured, and the overall performance of the coupler is good. The impact plate 71 is arranged on the double-stage crushing impeller 7, so that the crushing effect of the double-stage crushing impeller 7 is improved, and the impact plate is made of high manganese steel. The support 3 is made of cast iron, and the cast iron support is adopted to ensure firmness and stability and improve the manufacturing economy. The flange joint 6 is provided with a threaded hole 61, and can be connected with a linear sieve through the threaded hole 61 to crush the crushed coal powder again after screening.

The utility model discloses a theory of operation does: the during operation starts air heater 8 earlier, with 5 inside air drying in broken storehouse, add the coal cinder toward feed inlet 1 afterwards, the coal cinder has guaranteed through air heater 8 drying that the crushing in-process buggy can not be glutinous on broken impeller 7 of doublestage, through the broken impeller 7 of doublestage and the lower baffle 51 in the broken storehouse 5 and go up baffle 52 abundant crushing coal cinder, discharge gate 2 has set up flange joint 6 and can the connecting tube let in low reaches process with the buggy of smashing and filter.

The utility model has the advantages that: through the drying of air heater 8, make the coal cinder can not glue on the device at broken in-process, through the cooperation of doublestage crushing impeller 7 with crushing storehouse 5 for the crushing that can be abundant of buggy, it can directly dock with the screening process of low reaches to have set up flange joint 6 at discharge gate 2.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A pulverized coal refining device comprises a feeding hole (1), a discharging hole (2), a support (3), a three-phase asynchronous motor (4) and is characterized by further comprising a crushing bin (5), a flange joint (6), a two-stage crushing impeller (7), a hot air blower (8), an air inlet pipe (9) and a coupler (10), wherein an impact plate (71) is arranged on the two-stage crushing impeller (7), the feeding hole (1) is communicated with the crushing bin (5), an impeller shaft (72) of the two-stage crushing impeller (7) in the crushing bin (5) is connected with the three-phase asynchronous motor (4) through the coupler (10), a lower partition plate (51) and an upper partition plate (52) are arranged in the crushing bin (5), the left side of the crushing bin (5) is connected with the hot air blower (8) through the air inlet pipe (9), the three-phase asynchronous motor (4) and the hot air blower (8) are respectively connected with an external power supply through a circuit, the side of the crushing bin (5) is communicated with the discharge port (2), and the discharge port (2) is welded with the flange joint (6).

2. The pulverized coal refining apparatus as set forth in claim 1, wherein said lower baffle (51) is located on the side close to said double-stage crushing impeller (7), and said upper baffle (52) is located on the side close to said hot air blower (8).

3. The pulverized coal refining apparatus according to claim 1, wherein the coupling (10) is a wafer type coupling.

4. The pulverized coal refining apparatus as set forth in claim 1, wherein the impact plate (71) is made of high manganese steel.

5. The pulverized coal refining device according to claim 1, wherein the material of the support (3) is cast iron.

6. The pulverized coal refining device according to claim 1, wherein the flange joint (6) is provided with a threaded hole (61).