Pre-filtering device for auxiliary grinding
By installing an auxiliary grinding pre-filter device on the pipes of the sand mill, the residue and coarse particles in the raw materials are filtered out using a stainless steel filter mesh, which solves the problem of sand mill clogging, reduces maintenance costs and improves production efficiency.
Patent Information
- Application Number
- CN202421472176.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-06-26
AI Technical Summary
During the mass production process of coatings, the residue of raw material packaging bags and large coarse particles will block the sand mill, resulting in reduced production efficiency and high maintenance costs.
An auxiliary grinding pre-filter device is designed, including an outer tube, a joint and a filter element, which consists of a filter sleeve and a 60-mesh stainless steel filter mesh, which is installed on a pipe between the sand mill and the stirring cylinder to filter out residues and coarse particles.
Effectively filter out the front-end impurities of the sand mill, prevent blockage, reduce maintenance costs and workload, and improve production efficiency.
Smart Images
Figure CN222943050U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a filtering device, in particular to an auxiliary grinding pre-filtering device. Background Art
[0002] At present, when coatings are mass-produced, the residues of raw material packaging bags (paper scraps, plastic fragments, woven bag fragments) and larger coarse particles (difficult to grind foreign objects) enter the sand mill with the slurry. As the workload of the sand mill increases, the residues and coarse particles will clog the sand mill, reducing production efficiency. In severe cases, the sand mill needs to be stopped and disassembled for cleaning. In severe cases, it may even cause deformation fatigue of the mechanical seal spring of the sand mill, leading to slurry leakage. Based on this, it is necessary to design a front-end filter device that effectively protects the sand mill. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an auxiliary grinding pre-filter device in view of the deficiencies of the above-mentioned prior art. The device has a simple and reasonable structural design, is easy to install, has low cost, is convenient to maintain, and can be widely used.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an auxiliary grinding pre-filter device, characterized in that it includes an outer tube and a joint, the two ends of the outer tube are threaded reducers connected to the joints, a filter element is arranged in the outer tube, the filter element includes a filter sleeve and a filter screen, and the filter screen is installed in the filter sleeve. Both joints are connected to the pipeline between the sand mill and the mixing cylinder.
[0005] Preferably, the two filter screens are threadedly connected at both ends of the filter sleeve, the filter screen is a 60-mesh stainless steel filter screen, and the filter sleeve is also a stainless steel sleeve, which is easy to clean. The filter sleeve is embedded and slidably sleeved in the outer tube.
[0006] Preferably, the outer tube and the joint are both made of 304 stainless steel.
[0007] Compared with the prior art, the utility model has the following advantages:
[0008] The utility model has a scientific and reasonable structural design, is easy to install and disassemble, can be cleaned repeatedly, can effectively filter at the front end, plays the effect of protecting the sand mill, reduces the maintenance cost of the sand mill, and reduces the maintenance workload.
[0009] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model.
[0011] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.
[0012] Description of reference numerals:
[0013] 1—outer tube; 2—connector; 3—filter sleeve;
[0014] 4—Filter. DETAILED DESCRIPTION
[0015] like Figure 1 and Figure 2 As shown, the utility model comprises an outer tube 1 and a joint 2, wherein both ends of the outer tube 1 are threaded with reducers to connect the joints 2, a filter element is arranged inside the outer tube 1, the filter element comprises a filter sleeve 3 and a filter screen 4, and the filter screen 4 is installed inside the filter sleeve 3. Both joints 2 are connected to the pipeline between the sand mill and the mixing cylinder.
[0016] In this embodiment, two filter screens 4 are threadedly connected to both ends of the filter sleeve 3, the filter screen 4 is a 60-mesh stainless steel filter screen, and the filter sleeve 3 is also a stainless steel sleeve, which is easy to clean. The filter sleeve 3 is embedded and slidably sleeved in the outer tube 1.
[0017] In this embodiment, the outer tube 1 and the joint 2 are both made of 304 stainless steel.
[0018] When in use, the connecting pipe between the sand mill and the mixing tank is melted by a hot melt machine, and the broken end is connected to the two joints 2. When the filter element needs to be cleaned, unscrew the joint 2 and the outer tube 1, take out the filter element, remove the filter screen, and rinse the filter element with a high-pressure water gun.
[0019] In actual use, the material cost of replacing a set of unloading seals is about 1,500 yuan, and it takes 2-3 hours to dismantle the sand mill for replacement; when the sand mill is blocked, it takes 1-2 hours to dismantle and clean the sand mill; using this device for front-end filtration, it takes only 10-15 minutes to stop the machine to replace and clean the filter device, which can significantly save production time and material costs.
[0020] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any way. Any simple modification, change and equivalent change made to the above embodiment according to the essence of the utility model technology still falls within the protection scope of the technical solution of the utility model.
Claims
1. An auxiliary grinding pre-filter device, characterized in that: It comprises an outer tube (1) and a joint (2), wherein both ends of the outer tube (1) are threadedly connected to the joint (2), a filter element is arranged inside the outer tube (1), the filter element comprises a filter sleeve (3) and a filter screen (4), and the filter screen (4) is installed inside the filter sleeve (3); A plurality of the filter screens (4) are detachably connected in the filter sleeve (3), and the filter screen (4) is a 60-mesh filter screen.