Cement plant waste heat recovery circulating water filtering mechanism
By designing a fixed cover and backwash pipe in the waste heat recovery circulating water filtration mechanism of a cement plant, and cooperating with a geared motor to drive the filter disc to rotate, the problem of the filter disc being difficult to clean in a timely manner is solved, achieving effective filtration and system stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN JINYU JIDONG EP TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-29
AI Technical Summary
Existing waste heat recovery circulating water filtration mechanisms in cement plants have difficulty achieving timely backwashing and cleaning of the filter discs during the filtration process, resulting in poor filtration performance.
A structure including a filter box and a backwash assembly was designed. By setting a fixed cover and a backwash pipe in the upper and lower boxes, and cooperating with a geared motor to drive the filter disc to rotate, the filter disc is partially backwashed and cleaned, preventing impurities from being flushed out of the fixed cover.
It enables timely and uniform backwashing of the filter discs, ensuring filtration efficiency, preventing impurities from clogging the filter, and improving filtration efficiency and system stability.
Smart Images

Figure CN224292712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste heat recovery technology, specifically a waste heat recovery circulating water filtration mechanism for cement plants. Background Technology
[0002] The waste heat recovery circulating water filtration mechanism in cement plants is a key component in ensuring the stable operation of waste heat power generation systems. Its core function is to remove suspended solids, colloids, and dust particles from the circulating water, prevent scaling, corrosion, and algae growth, improve heat exchange efficiency, and reduce energy consumption.
[0003] Existing waste heat recovery circulating water filtration mechanisms in cement plants can be backwashed after filtering impurities, but in the circulating water filtration process, it is inconvenient to achieve timely backwashing of the filter discs through rotation and circulation. As a result, the clogging of the filter discs during use affects the filtration effect. Therefore, we propose a new waste heat recovery circulating water filtration mechanism for cement plants. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows:
[0006] A waste heat recovery circulating water filtration mechanism for cement plants includes: a filter box and a backwash assembly; the filter box includes an upper box and a lower box at its upper and lower ends; the backwash assembly includes an installation port provided in both the upper and lower boxes, a filter disc movably installed in the installation port between the upper and lower boxes, an upper fixed cover fixedly installed on one side of the upper box, a sewage discharge chamber opened in the upper fixed cover, a lower fixed cover fixedly installed on one side of the lower box, a backwash chamber opened in the lower fixed cover, and a backwash pipe fixedly installed in the backwash chamber.
[0007] Preferably, multiple sets of nozzles are also arranged and fixedly installed on the backflush pipe.
[0008] Preferably, a drain pipe is fixedly installed inside the drain cavity.
[0009] Preferably, a fixed shaft is fixedly installed at the center of the bottom of the filter disc, and a geared motor is also fixedly installed at the bottom of the lower housing, with the geared motor and the bottom of the fixed shaft being fixedly connected.
[0010] Preferably, a sealing sleeve is movably installed at the outer end of the fixed shaft, and the bottom of the sealing sleeve is fixed to the lower housing.
[0011] Preferably, an inlet pipe and an outlet pipe are fixedly installed on the top of the upper box and the bottom of the lower box, respectively.
[0012] Preferably, the upper fixing cover and the lower fixing cover have the same structure, and the upper fixing cover is located directly above the lower fixing cover.
[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0014] 1. In this utility model, the upper fixed cover and the lower fixed cover installed in the upper box and the lower box respectively can form a local backwash space at the upper and lower ends of the filter disc in the filter box. Thus, through the backwash pipe and sewage pipe in the lower fixed cover and the upper fixed cover, and with the deceleration motor at the bottom of the lower box that drives the filter disc to decelerate, the filter disc can be backwashed and cleaned in time by slowly rotating and circulating in the lower fixed cover and the upper fixed cover during use, so as to ensure the effect of the filter disc.
[0015] 2. In this utility model, the local backwash space formed between the upper and lower housings of the filter disc also avoids the problem of impurities after backwashing being pushed to the outer end of the upper fixed cover, thereby ensuring the backwashing effect. Attached Figure Description
[0016] Figure 1 This is an overall structural diagram of the present invention;
[0017] Figure 2 This is another perspective view of the present invention;
[0018] Figure 3 This is a split view of the upper and lower housings of this utility model;
[0019] Figure 4 This is another perspective of the disassembled view of the upper and lower housings of this utility model;
[0020] Figure 5 This is a side sectional view of the present invention.
[0021] Figure label:
[0022] 100. Filter box; 101. Upper chamber; 102. Lower chamber;
[0023] 200. Backflush assembly; 201. Mounting port; 202. Filter disc; 203. Upper fixing cover; 204. Drainage chamber; 205. Lower fixing cover; 206. Backflush chamber; 207. Backflush pipe; 208. Nozzle; 209. Drainage pipe; 210. Fixed shaft; 211. Gear motor; 212. Sealing sleeve; 213. Inlet pipe; 214. Outlet pipe. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0025] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a waste heat recovery circulating water filtration mechanism for cement plants.
[0026] Example 1:
[0027] Combination Figure 1-5 As shown, the present invention provides a waste heat recovery circulating water filtration mechanism for cement plants, comprising: a filter box 100 and a backflushing assembly 200; the filter box 100 includes an upper box 101 and a lower box 102 at its upper and lower ends; the backflushing assembly 200 includes an installation port 201 provided in both the upper box 101 and the lower box 102, a filter disc 202 movably installed in the installation port 201 between the upper box 101 and the lower box 102, an upper fixed cover 203 fixedly installed on one side inside the upper box 101, a sewage discharge chamber 204 opened in the upper fixed cover 203, a lower fixed cover 205 fixedly installed on one side inside the lower box 102, a backflushing chamber 206 opened in the lower fixed cover 205, and a backflushing pipe fixedly installed in the backflushing chamber 206. 207. Multiple sets of nozzles 208 are also fixedly installed on the backwash pipe 207. A drain pipe 209 is fixedly installed in the drain chamber 204. A fixed shaft 210 is fixedly installed at the center of the bottom of the filter disc 202. A reduction motor 211 is also fixedly installed at the bottom of the lower housing 102, and the reduction motor 211 is fixedly connected to the bottom of the fixed shaft 210. A sealing sleeve 212 is also movably installed at the outer end of the fixed shaft 210, and the bottom of the sealing sleeve 212 is fixed inside the lower housing 102. A water inlet pipe 213 and a water outlet pipe 214 are fixedly installed at the top of the upper housing 101 and the bottom of the lower housing 102, respectively. The upper fixed cover 203 has the same structure as the lower fixed cover 205, and the upper fixed cover 203 is located directly above the lower fixed cover 205.
[0028] Specifically, the waste heat recovery circulating water filtration mechanism in a cement plant is a crucial component for ensuring the stable operation of the waste heat power generation system. Its core function is to remove suspended solids, colloids, and dust particles from the circulating water, preventing scaling, corrosion, and algae growth, thereby improving heat exchange efficiency and reducing energy consumption. The upper fixed cover 203 and lower fixed cover 205, respectively installed in the upper housing 101 and lower housing 102 of this circulating water filtration mechanism, create localized backwashing spaces at the upper and lower ends of the filter disc 202 within the filter housing 100. Through the backwash pipe 207 and drain pipe 209 within the lower fixed cover 205 and upper fixed cover 203, and in conjunction with the geared motor 211 at the bottom of the lower housing 102 that drives the filter disc 202, the filter disc 202 can be slowly rotated and circulated within the lower fixed cover 205 and upper fixed cover 203 during use, ensuring timely backwashing and cleaning of the filter disc 202, thus guaranteeing filtration efficiency. The filter disc 202 provides excellent filtration. The localized backwash space formed between the upper and lower housings 101 and 102 of the filter disc 202 prevents impurities from being flushed to the outer end of the upper fixed cover 203, thus ensuring the backwashing effect. The mounting ports 201 inside the upper and lower housings 101 are primarily for installing the filter disc 202. Multiple sets of nozzles 208 arranged on the backwash pipe 207 ensure uniformity during backwashing. The fixed shaft 210 at the bottom of the filter disc 202 connects to the reduction motor 211, enabling the filter disc 202 to be driven by speed reduction. The sealing sleeve 212 fitted to the outer end of the fixed shaft 210 ensures a sealed connection between the fixed shaft 210 and the lower housing 102. The inlet pipe 213 at the upper end of the upper housing 101 and the outlet pipe 214 at the bottom of the lower housing 102 are for the inlet and outlet of circulating water.
[0029] Working principle and usage process of this utility model:
[0030] After circulating water enters the upper chamber 101 through the inlet pipe 213, it will be filtered by the filter disc 202 and then flow into the lower chamber 102 and finally out through the outlet pipe 214 at the bottom. During the filtration of circulating water by the filter disc 202 in the filter chamber 100, the reduction motor 211 at the bottom of the lower chamber 102 will drive the filter disc 202 to rotate slowly through the fixed shaft 210. During the slow rotation of the filter disc 202, the local parts of it located in the upper fixed cover 203 and the lower fixed cover 205 will be backwashed evenly through the backwash pipe 207 and multiple sets of nozzles 208 in the lower fixed cover 205, so that the impurities filtered inside will be backwashed into the upper fixed cover 203 at the top and discharged through the drain pipe 209 in the upper fixed cover 203. This allows the filter disc 202 in the filter chamber 100 to be backwashed and cleaned in a timely and even manner during use, thereby improving its filtration effect.
[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A waste heat recovery circulating water filtration mechanism for cement plants, characterized in that, include: Filter box (100), backwash assembly (200); The filter box (100) includes an upper box (101) and a lower box (102) at its upper and lower ends; The backwash assembly (200) includes an installation port (201) provided in both the upper housing (101) and the lower housing (102), a filter disc (202) movably installed in the installation port (201) between the upper housing (101) and the lower housing (102), an upper fixed cover (203) fixedly installed on one side inside the upper housing (101), a sewage discharge chamber (204) opened in the upper fixed cover (203), a lower fixed cover (205) fixedly installed on one side inside the lower housing (102), a backwash chamber (206) opened in the lower fixed cover (205), and a backwash pipe (207) fixedly installed in the backwash chamber (206).
2. The waste heat recovery circulating water filtration mechanism for cement plants according to claim 1, characterized in that, Multiple sets of nozzles (208) are also arranged and fixedly installed on the backflush pipe (207).
3. The waste heat recovery circulating water filtration mechanism for cement plants according to claim 1, characterized in that, The sewage pipe (209) is fixedly installed inside the sewage discharge chamber (204).
4. The waste heat recovery circulating water filtration mechanism for cement plants according to claim 1, characterized in that, A fixed shaft (210) is fixedly installed at the center of the bottom of the filter disc (202), and a reduction motor (211) is also fixedly installed at the bottom of the lower housing (102), and the reduction motor (211) is fixedly connected to the bottom of the fixed shaft (210).
5. A waste heat recovery circulating water filtration mechanism for cement plants according to claim 4, characterized in that, A sealing sleeve (212) is movably installed at the outer end of the fixed shaft (210), and the bottom of the sealing sleeve (212) is fixed inside the lower housing (102).
6. The waste heat recovery circulating water filtration mechanism for cement plants according to claim 1, characterized in that, The top of the upper box (101) and the bottom of the lower box (102) are respectively fixedly installed with a water inlet pipe (213) and a water outlet pipe (214).
7. A waste heat recovery circulating water filtration mechanism for cement plants according to claim 1, characterized in that, The upper fixing cover (203) and the lower fixing cover (205) have the same structure, and the upper fixing cover (203) is located directly above the lower fixing cover (205).