Coal slime jet mixer

Abstract

The utility model provides a coal slime jet mixer which is not easy to block, simple to overhaul and maintain, not easy to wear, not easy to agglomerate and small in pollution. The device comprises an inlet flange, an inner cylinder, a shell, a high-pressure jet flow flange, a jet flow connecting pipe and an outlet flange, the inlet flange is fixedly mounted at the left end of the inner cylinder, and the outlet flange is fixedly mounted at the right end of the inner cylinder; the shell is fixedly sleeved on the inner cylinder, the left end and the right end of the shell are sealed, and a jet flow chamber is formed between the shell and the inner cylinder; spray holes are formed in the inner cylinder, and the jet flow cavity is communicated with the inner cylinder through the spray holes; the high-pressure jet flow flange is fixedly installed at one end of the jet flow connecting pipe, and the other end of the jet flow connecting pipe is connected with a left shell body of the shell.

Description

Technical Field

[0001] The utility model relates to a coal slime jet mixer, which is mainly used in a coal slime pipeline transportation system in the coal mining industry. Background Art

[0002] Although my country is actively developing new energy sources, coal is still the main energy source in my country. The coal industry is an important basic industry for the development of the national economy and a basic industry related to the national economy and people's livelihood. Since the reform and opening up, the national economy has developed rapidly, and coal production has jumped to the first place in the world. In 2022, the national raw coal output was 4.56 billion tons, a year-on-year increase of 9%, a record high. The national coal consumption increased by 4.3%, and coal consumption accounted for 56.2% of the total national energy consumption. From January to June 2023, China's cumulative raw coal production reached 2193.507 million tons, a cumulative increase of 11%. Based on the two major goals and tasks of ensuring national energy security and responding to climate change, coal will continue to be the main energy source in my country for a period of time in the future. With the continuous increase in the proportion of raw coal selected in my country, the emission of low-calorific value coal fuels such as coal gangue and coal slime, which are by-products, is also increasing. In the future, with the increase in coal production and the further increase in the selection rate, the production of low-calorific value coal fuels such as coal gangue and coal slime will also increase further. The output of coal slime in my country increased from 150 million tons in 2012 to 215 million tons in 2022, and the utilization of coal slime increased from 28 million tons in 2012 to 51 million tons in 2022. However, the overall utilization rate of coal slime in my country is basically less than 25%, and a large amount of coal slime is piled up and landfilled in gullies or valleys, which not only wastes resources, but also occupies land and pollutes the environment.

[0003] The main problems in coal slime treatment are high water content, low calorific value, high viscosity, difficult transportation, easy agglomeration, easy blockage, etc. Coal slime water and coal slime transportation also have the disadvantages of easy pipe blockage, easy agglomeration, and large wear. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned deficiencies in the prior art and to provide a reasonably designed coal sludge jet mixer which is not easy to be blocked, has simple overhaul and maintenance, is not easy to wear, is not easy to agglomerate, and has little pollution.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: a coal sludge jet mixer, characterized in that it includes an inlet flange, an inner cylinder, an outer shell, a high-pressure jet flange, a jet pipe and an outlet flange; the inlet flange is fixedly installed at the left end of the inner cylinder, and the outlet flange is fixedly installed at the right end of the inner cylinder; the outer shell is fixedly fixed on the inner cylinder, the left end and the right end of the outer shell are both sealed, and a jet chamber is formed between the outer shell and the inner cylinder; the inner cylinder is provided with a spray hole, and the jet chamber is connected with the inner cylinder through the spray hole; the high-pressure jet flange is fixedly installed at one end of the jet pipe, and the other end of the jet pipe is connected to the left shell of the outer shell.

[0006] The utility model discloses a sewage outlet is arranged at the lower end of the jet chamber, and the sewage outlet is blocked by a chamber sewage plug.

[0007] The shell described in the utility model comprises a chamber baffle, a left shell and a right shell; the right shell is sleeved on the inner cylinder, and the right end of the right shell is fixed to the inner cylinder; the left shell is sleeved on the inner cylinder, and the right end of the left shell is fixed to the right end of the right shell; the chamber baffle is fixedly installed on the left end of the left shell and the inner cylinder to seal the left end of the left shell.

[0008] The right shell body of the utility model is in the shape of a trumpet.

[0009] The utility model has a plurality of spray holes which are divided into three circles, and each circle is provided with 6 spray holes.

[0010] The diameter of the spray hole of the utility model is reduced from Φ20mm to Φ4mm and then expanded to Φ8mm.

[0011] The spray hole of the utility model is in an inclined shape.

[0012] The angle between the spray hole and the center line of the inner cylinder is 36 degrees.

[0013] Compared with the prior art, the utility model has the following advantages and effects:

[0014] The utility model has the advantages of simple structure, easy manufacture, low cost, high-pressure jet, uniform mixing, non-clogging, non-wear, non-agglomeration and low pollution, and effectively solves the problems of insufficient stability and reliability in the pipeline transportation link of large particles and heavy-density solid-liquid mixtures (such as coal slime); at the same time, the flange connection is adopted, so that it is convenient to connect with the transportation pipeline and the high-pressure water pipeline, and convenient to disassemble, assemble and overhaul. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front cross-sectional structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0017] The utility model comprises an inlet flange 1, an inner tube 2, an outer shell, a high-pressure jet flange 5, a jet pipe 6, an outlet flange 8 and a chamber sewage plug 10.

[0018] The inlet flange 1 is fixedly installed on the left end of the inner tube 2 , and the outlet flange 8 is fixedly installed on the right end of the inner tube 2 .

[0019] The outer shell is fixedly mounted on the inner cylinder 2, and the left and right ends of the outer shell are sealed. A complete jet chamber 11 is formed between the outer shell and the inner cylinder 2, and a sewage outlet is arranged at the lower end of the jet chamber 11, and the sewage outlet is blocked by a chamber sewage plug 10. The outer shell includes a chamber baffle 3, a left shell 4 and a right shell 7; the right shell 7 is mounted on the inner cylinder 2, and the right end of the right shell 7 is fixed to the inner cylinder 2, so that the right end of the outer shell is sealed, and the right shell 7 is trumpet-shaped; the left shell 4 is mounted on the inner cylinder 2, and the right end of the left shell 4 is welded and fixed to the right end of the right shell 7; the chamber baffle 3 is fixedly mounted on the left end of the left shell 4 and the inner cylinder 2, and the left end of the left shell 4 is sealed, so that the left end of the outer shell is sealed.

[0020] The inner cylinder 2 is provided with a spray hole 9, and the spray chamber 11 is connected with the inner cylinder 2 through the spray hole 9. The spray hole 9 is used to mix the spray flow when conveying coal slime to prevent coal slime deposition and blockage. There are multiple spray holes 9, which are divided into three circles, and each circle is provided with 6 spray holes. The spray hole 9 adopts a streamlined throat-shaped hole, and the aperture is reduced from Φ20mm to Φ4mm and then expanded to Φ8mm. The spray hole 9 is inclined, and the angle between it and the center line of the inner cylinder 2 is 36°.

[0021] The high-pressure jet flange 5 is fixedly mounted on the upper end of the jet pipe 6, and the lower end of the jet pipe 6 is connected to the left shell body 4 of the housing.

[0022] The two ends of the utility model are connected to the delivery pipeline by flange connection, and the delivery pipeline is respectively connected to the inlet flange 1 and the outlet flange 8; the upper end of the utility model is connected to the high-pressure jet water pipeline by the high-pressure jet flange 5. 10MPa high-pressure jet water is input from the jet pipe 6 and sprayed out from the spray hole 9 evenly, and is fully mixed with the coal slime transported by the main cavity inner tube 2 to form a homogeneous mixture, thereby ensuring that the coal slime is stably and evenly transported through the inner tube 2 from the outlet.

[0023] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the utility model. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the utility model are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A coal sludge jet mixer, characterized in that: It includes an inlet flange, an inner tube, an outer shell, a high-pressure jet flange, a jet pipe and an outlet flange; the inlet flange is fixedly installed on the left end of the inner tube, and the outlet flange is fixedly installed on the right end of the inner tube; the outer shell is fixed on the inner tube, the left and right ends of the outer shell are sealed, and a jet chamber is formed between the outer shell and the inner tube; there is a spray hole on the inner tube, and the jet chamber is connected with the inner tube through the spray hole; the high-pressure jet flange is fixedly installed on one end of the jet pipe, and the other end of the jet pipe is connected to the left shell of the outer shell.

2. The coal sludge jet mixer according to claim 1, characterized in that: A sewage outlet is arranged at the lower end of the jet chamber, and the sewage outlet is blocked by a chamber sewage plug.

3. The coal sludge jet mixer according to claim 1, characterized in that: The shell includes a chamber baffle, a left shell and a right shell; the right shell is sleeved on the inner cylinder, and the right end of the right shell is fixed to the inner cylinder; the left shell is sleeved on the inner cylinder, and the right end of the left shell is fixed to the right end of the right shell; the chamber baffle is fixedly installed on the left end of the left shell and the inner cylinder to seal the left end of the left shell.

4. The coal sludge jet mixer according to claim 3, characterized in that: The right shell is in the shape of a trumpet.

5. The coal sludge jet mixer according to claim 1, characterized in that: The spray holes are multiple and divided into three circles, with 6 spray holes arranged in each circle.

6. The coal sludge jet mixer according to claim 1, characterized in that: The diameter of the spray hole is reduced from Φ20mm to Φ4mm and then expanded to Φ8mm.

7. The coal sludge jet mixer according to claim 1, characterized in that: The spray hole is inclined.

8. The coal sludge jet mixer according to claim 1, characterized in that: The angle between the spray hole and the center line of the inner cylinder is 36°.

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