Large impurity crushing device for precleaner

Abstract

The utility model particularly relates to a large impurity crushing device for a precleaner, which is characterized by comprising an upper shell, a lower shell and a crusher, and the crusher is mounted between the upper shell and the lower shell. The utility model has the advantages of reasonable structure and flexibility and convenience in use. After the ash pipe is used, an original ash pipe with a large diameter is replaced by a relatively thin ash pipe, the investment of the ash pipe is reduced, the ash pipe is arranged on the ash pipe, large impurities are crushed by a crusher, and the defect that the ash pipe is easy to block is overcome.

Description

Technical Field

[0001] The utility model specifically relates to a primary cleaning and screening large debris crushing device. Background Art

[0002] The primary cleaning screen (including mesh belt screen, cylindrical screen, rotary vibration screen, etc.) is one of the most commonly used equipment for material screening in the grain storage industry. It separates impurities in the material through screening to obtain purer materials. At present, in the process of lifting and cleaning grains (wheat, soybeans, corn, rice, etc.), the primary cleaning screen is installed at a higher position. The impurities screened out by the primary cleaning screen need to be diverted to the first layer by an ash pipe to be loaded and taken away. If there are many impurities in the grain, such as long straws, ropes and other long and large impurities (hereinafter referred to as large impurities) in the grain, the ash pipe needs to be designed with a larger diameter, which is costly. Even if a large diameter ash pipe is used, it will often be blocked (at the corner of the ash pipe), requiring frequent inspections and cleaning. Utility Model Content

[0003] The utility model aims to provide a primary cleaning screen large impurities crushing device, which is installed at the primary cleaning screen large impurities outlet to solve the ash pipe blockage caused by long straws, ropes and other large impurities.

[0004] The utility model is realized by the following technical solutions:

[0005] That is, a primary cleaning screen large debris crushing device, characterized in that it includes an upper shell, a lower shell and a crusher, and the crusher is installed between the upper shell and the lower shell.

[0006] The utility model is connected in series to the ash pipe of the primary cleaning screen, and the upper end of the upper shell body and the lower end of the lower shell body are respectively connected to the ash pipe and the ash pipe. Long straws, ropes and other long and large impurities screened out by the primary cleaning screen enter the upper shell body through the ash pipe, enter the lower shell body after being crushed by the pulverizer, and are finally discharged through the ash pipe.

[0007] Furthermore, a material guide plate is provided inside the upper shell of the utility model, and the lower end of the material guide plate is hinged inside the upper shell through a material guide plate shaft and a bearing. A material guide plate rotating handle is provided at one end of the material guide plate shaft. The material guide plate divides the upper shell into two flow channels, and the crusher is located under one of the flow channels.

[0008] The utility model divides the upper shell into two flow channels by a partition. By rotating the handle, the guide plate can be driven to rotate and switch the flow channels. When the crusher is needed to work, the guide plate is rotated to open the flow channel where the crusher is located (closing the flow channel on the other side). Conversely, when the crusher is not needed to work, the guide plate is rotated to open the flow channel on the other side (closing the flow channel on the side where the crusher is located).

[0009] The material guide plate rotating handle of the utility model can be operated manually, and can also be operated pneumatically / hydraulicly (connected with the piston rod of the air cylinder / hydraulic cylinder).

[0010] Furthermore, a canvas soft connection is provided below another flow channel of the upper shell of the utility model.

[0011] The upper and lower ends of the canvas flexible connection are connected with the upper shell and the lower shell through flexible connection clamps.

[0012] Another flow channel of the upper shell of the utility model can also be connected by flange or welding.

[0013] A partition plate can be arranged inside the lower shell of the utility model to separate the lower shell into two flow channels corresponding to the two flow channels of the upper shell.

[0014] The lower shell of the utility model may not be provided with a partition plate.

[0015] Furthermore, a cleaning door is provided on one side of the lower shell of the utility model.

[0016] Once blockage occurs, the cleaning door can be opened to clean the inside of the lower shell.

[0017] Furthermore, the pulverizer of the present invention is preferably a double-shaft pulverizer.

[0018] The present invention can also use other known crushing devices as long as they can be installed between the upper shell and the lower shell.

[0019] The utility model has the advantages of reasonable structure and flexible and convenient use. After using the utility model, the original ash pipe with a larger diameter is replaced with a relatively thin ash pipe, which reduces the investment in ash pipes. The utility model is arranged on the ash pipe, and the large impurities are crushed by the crusher, which solves the defect that the ash pipe is easy to be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 for Figure 1 Left-facing view of

[0022] Figure 3 This is a schematic diagram of the utility model in use.

[0023] As shown in the figure: 1. Upper shell; 2. Lower shell; 3. Guide plate; 4. Guide plate shaft; 5. Bearing; 6. Guide plate rotating handle; 7. Cleaning door; 8. Double-shaft crusher; 9. Canvas soft connection; 10. Soft connection clamp; 11. Ash pipe; 12. Primary cleaning screen. DETAILED DESCRIPTION

[0024] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should be the common meanings understood by technicians in the field to which the utility model belongs. Example 1

[0025] like Figure 1 , Figure 2 As shown: the double-shaft crusher 8 is installed between the upper shell 1 and the lower shell 2, and a guide plate 3 is provided inside the upper shell 2. The lower end of the guide plate 3 is hinged inside the upper shell 1 through a guide plate shaft 4 and a bearing 5. One end of the guide plate shaft 4 is provided with a guide plate rotating handle 6. The guide plate 3 divides the upper shell 1 into two left and right flow channels. The double-shaft crusher 8 is located below the right flow channel, and a canvas soft connection 9 is provided below the left flow channel. The upper and lower ends of the canvas soft connection 9 are respectively connected to the upper shell 1 and the lower shell 2 through a soft connection clamp 10, and a cleaning door 7 is provided on one side of the lower shell 2.

[0026] When this embodiment is used, Figure 3 As shown, the whole is installed on the ash pipe 11. When there are many large impurities among the impurities screened out by the primary screen 12, the guide plate 3 is rotated by rotating the handle 6 of the guide plate to open the right channel, and the double-shaft crusher 8 is started to crush the large impurities into small impurities, and then discharged through the lower shell 2 and the ash pipe 11;

[0027] When there are fewer large impurities among the impurities screened out by the primary screening machine 12, the guide plate 3 is rotated by rotating the handle 6 of the guide plate to open the left channel. The double-shaft crusher 8 does not need to work, and the ash impurities enter the lower shell 2 through the left channel and the canvas flexible connection 9, and are finally discharged through the ash pipe 11.

[0028] Once the lower shell 2 is clogged, the cleaning door 7 can be opened to clean the interior of the lower shell 2. Example 2

[0029] Based on Example 1, this embodiment removes the guide plate 3, the guide plate shaft 4, the bearing 5 and the canvas flexible connection 9, that is, there is only one channel in the entire device, and the rest is the same as Example 1.

[0030] When this embodiment is used, compared with the embodiment 1, the double-shaft pulverizer 8 is always in working state.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A primary cleaning and screening large debris crushing device, characterized in that It includes an upper shell, a lower shell and a grinder, wherein the grinder is installed between the upper shell and the lower shell, a material guide plate is provided inside the upper shell, the lower end of the material guide plate is hinged inside the upper shell through a material guide plate shaft and a bearing, a material guide plate rotating handle is provided at one end of the material guide plate shaft, the material guide plate separates the upper shell into two flow channels, and the grinder is located under one of the flow channels.

2. The device for crushing large impurities by primary screening according to claim 1, characterized in that A canvas soft connection is provided below another flow channel of the upper shell.

3. The device for crushing large impurities by primary screening according to claim 1, characterized in that A cleaning door is provided on one side of the lower shell.

4. The device for crushing large impurities by primary screening according to claim 1, characterized in that The pulverizer is a double-shaft pulverizer.

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