Wet overflow type rod mill with anti-leakage feeding end
Through the sealing structure of the moving and static rings and compressed air purge technology, the leakage problem of the wet overflow rod mill inlet is solved, preventing coal slurry leakage, saving raw materials and improving the production environment.
Patent Information
- Application Number
- CN202420660321.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-01
AI Technical Summary
During operation, the wet overflow rod mill has an increase in the gap between the cylinder body and the inlet chute, resulting in coal slurry leakage, resulting in waste of raw materials and environmental pollution.
The moving ring and the static ring are used to form a sealing structure, and the gap is sealed by the compressed air purge sealing structure to ensure that the material does not leak.
It effectively prevents coal slurry leakage, saves raw materials, improves production environment sanitation, and reduces production costs.
Smart Images
Figure CN222152263U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of wet overflow rod mills, and in particular to a wet overflow rod mill with leakage prevention at the feeding end. Background Art
[0002] During the operation of Texaco's water-coal slurry gasification system, the wet overflow rod mill is an important core equipment in the operation of the coal gasification system. Under normal operating conditions of the wet overflow rod mill system, the raw coal, pulping water (filtrate water, raw water, etc.) and water-coal slurry additives are mixed in the rod mill cylinder, and then mixed and ground with steel rods, cylinder linings and raw coal and other media in the cylinder to produce high-concentration, low-viscosity and good fluidity water-coal slurry.
[0003] In the prior art, during the operation of a wet overflow rod mill system, the gap between the feed end cylinder and the inlet chute gradually increases, causing the medium coal slurry in the rod mill cylinder to leak to the outside, thereby causing a waste of raw materials and polluting the production environment. Utility Model Content
[0004] In response to the above problems, the present application provides a wet overflow rod mill with leakage prevention at the feed end, which has a leakage prevention function at the feed end, greatly improves the production cost savings, solves the waste problem caused by raw material leakage, and improves the civilized and hygienic working environment of the production site.
[0005] To achieve the purpose of this application, this application provides the following technical solutions:
[0006] The present application provides a feeding end leakage-proof wet overflow type rod mill, comprising: a chute, a rod mill body, and a drum screen;
[0007] The outer wall of the output end of the chute is provided with a dynamic ring, which is penetrated through the feeding end of the rod mill body; the inner wall of the feeding end of the rod mill body is provided with a static ring; the dynamic ring cooperates with the static ring to form a sealing structure;
[0008] The drum screen input end is communicated with the output end of the rod mill body, and the drum screen output end is communicated with the water-coal slurry storage module.
[0009] In a possible implementation, the feed-end leakage-proof wet overflow rod mill further includes: a purge sealing structure; the purge sealing structure includes: a compressed air output module and a compressed air pipeline;
[0010] The input end of the compressed air pipeline is communicated with the output end of the compressed air output module, and the output end of the compressed air pipeline is arranged at the connection gap between the chute and the rod mill body, for purging and sealing the connection gap.
[0011] In a possible implementation, the outer side of the drum screen has a protective cover.
[0012] In a possible implementation, the rod mill body includes: a large gear and a small gear;
[0013] The input end of the pinion gear is fixedly connected to the output end of the motor; the large gear is meshed with the pinion gear.
[0014] In a possible implementation, the input end of the chute includes: a raw coal addition port, a slurry water addition port, and a water-coal slurry additive addition port;
[0015] The raw coal adding port is used to add raw coal;
[0016] The pulping water addition port is used to add pulping water;
[0017] The coal-water slurry additive adding port is used for adding the coal-water slurry additive.
[0018] In a possible implementation, the compressed air pressure output by the compressed air output module is 0.5 MPa.
[0019] The anti-leakage wet overflow rod mill at the feed end provided by the present application can be sealed by combining the dynamic ring and the static ring, and after the wet overflow rod mill is started, the compressed air output end valve is opened to blow with compressed air to achieve secondary sealing. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application.
[0021] Figure 1 A schematic structural diagram of a wet overflow rod mill with leakage prevention at the feed end provided in an embodiment of the present application.
[0022] Figure numerals: 1-chute, 11-moving ring, 12-raw coal addition port, 13-slurry water addition port, 14-water-coal slurry additive addition port; 2-rod mill body, 21-static ring, 22-large gear, 23-small gear; 3-compressed air output module, 31-compressed air pipeline; 4-drum screen; 5-protective cover; 6-water-coal slurry storage module; 7-motor. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of this application, unless otherwise specified, "plurality" means two or more.
[0025] Example 1
[0026] Figure 1 A feeding end anti-leakage wet overflow type rod mill provided in the embodiment of the present application comprises: a chute 1, a rod mill body 2, and a drum screen 4;
[0027] The outer wall of the output end of the chute 1 has a dynamic ring 11, which is inserted into the feeding end of the rod mill body 2; the inner wall of the feeding end of the rod mill body 2 has a static ring 21; the dynamic ring 11 cooperates with the static ring 21 to form a sealing structure;
[0028] The input end of the drum screen 4 is communicated with the output end of the rod mill body 2 , and the output end of the drum screen 4 is communicated with the water-coal slurry storage module 6 .
[0029] In a possible implementation, the feed-end leakage-proof wet overflow rod mill further includes: a purge sealing structure; the purge sealing structure includes: a compressed air output module 3 and a compressed air pipeline 31;
[0030] The input end of the compressed air pipeline 31 is communicated with the output end of the compressed air output module 3 , and the output end of the compressed air pipeline 31 is arranged at the connection gap between the chute 1 and the rod mill body 2 , for purging and sealing the connection gap.
[0031] Optionally, when the output end of the compressed air pipeline 31 is aligned and the chute 1 is connected to the rod mill body 2 in a penetrating manner, the gap between the outer wall of the chute 1 and the side wall of the feeding port of the rod mill body is continuously purged by compressed air to prevent the material in the cylinder from leaking out.
[0032] Optionally, the compressed air output module 3 is a factory compressed air public pipeline network, which is started and stopped by a valve.
[0033] In a possible implementation, a protective cover 5 is provided on the outer side of the drum screen 4. This implementation can protect the drum screen 4 and prevent the water-coal slurry from splashing out.
[0034] In a possible implementation, the rod mill body 2 includes: a large gear 22 and a small gear 23;
[0035] The input end of the pinion gear 23 is fixedly connected to the output end of the motor 7 ; the large gear 22 is meshed with the pinion gear 23 .
[0036] In a possible implementation, the input end of the chute 1 includes: a raw coal addition port 12, a pulping water addition port 13, and a water-coal slurry additive addition port 14;
[0037] The raw coal addition port 12 is used for adding raw coal; the pulping water addition port 13 is used for adding pulping water; the water-coal slurry additive addition port 14 is used for adding water-coal slurry additives. This implementation method enables the three raw materials to be separately fed in, preventing the three raw materials from merging prematurely and clogging the feed port.
[0038] In a possible implementation manner, the compressed air pressure output by the compressed air output module 3 is 0.5 MPa.
[0039] Working principle:
[0040] During the operation of the wet overflow rod mill system, when the gap between the feeding end of the rod mill and the chute gradually increases, the sealing of the inside of the rod mill body is achieved through the cooperation of the dynamic ring and the static ring, and by adding a compressed air output module 3, the gap between the feeding end of the rod mill and the chute 1 is purged to achieve a sealing effect.
[0041] The raw materials entering the wet overflow rod mill are ground and stirred by the motor 7 driving the small gear 23, and the small gear 23 drives the large gear 22, and then the water-coal slurry is screened by the drum screen 4, and the drum screen 4 is protected by the protective cover 5 to ensure that the water-coal slurry does not splash out.
[0042] In the several embodiments provided in the present application, it should be understood that the disclosed systems, modules and methods can be implemented in other ways. For example, the module embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, modules or units, which can be electrical, mechanical or other forms.
[0043] The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. The present application is not limited to the exact structure described above and illustrated in the accompanying drawings, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be deemed to belong to the protection scope of the present application.
Claims
1. A wet overflow rod mill with leakage prevention at the feeding end, characterized in that: include: A chute (1), a rod mill body (2), and a drum screen (4); The outer wall of the output end of the chute (1) is provided with a moving ring (11), which is penetrated through the feeding end of the rod mill body (2); the inner wall of the feeding end of the rod mill body (2) is provided with a stationary ring (21); the moving ring (11) cooperates with the stationary ring (21) to form a sealing structure; The input end of the drum screen (4) is in communication with the output end of the rod mill body (2), and the output end of the drum screen (4) is in communication with the water-coal slurry storage module (6).
2. The feed end leakage-proof wet overflow rod mill according to claim 1, characterized in that: Also includes: Purge seal structure; The purge seal structure comprises: a compressed air output module (3) and a compressed air pipeline (31); The input end of the compressed air pipeline (31) is connected to the output end of the compressed air output module (3), and the output end of the compressed air pipeline (31) is arranged at the connection gap between the chute (1) and the rod mill body (2) for purging and sealing the connection gap.
3. The feed end leakage-proof wet overflow rod mill according to claim 1, characterized in that: The outer side of the drum screen (4) is provided with a protective cover (5).
4. The feed end leakage-proof wet overflow rod mill according to claim 1, characterized in that: The rod mill body (2) comprises: a large gear (22) and a small gear (23); The input end of the pinion gear (23) is fixedly connected to the output end of the motor (7); the large gear (22) is meshed with the pinion gear (23).
5. The feed end leakage-proof wet overflow rod mill according to claim 1, characterized in that: The input end of the chute (1) comprises: a raw coal addition port (12), a slurry water addition port (13), and a water-coal slurry additive addition port (14); The raw coal adding port (12) is used to add raw coal; The pulping water addition port (13) is used to add pulping water; The coal-water slurry additive adding port (14) is used for adding coal-water slurry additives.
6. The feed end leakage-proof wet overflow rod mill according to claim 2, characterized in that: The compressed air pressure output by the compressed air output module (3) is 0.5 MPa.