Secondary pushing device for fine grid drying device
By using a secondary material push device in the fine grid drying device, the fine grid slag is prevented from accumulating at the feed port of the drying device and evenly distributed, the problem of blockage of the conveyor pipeline caused by uneven heat during the fine grid drying process is solved, and better drying effect and equipment operation safety are achieved.
Patent Information
- Application Number
- CN202421947048.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-13
AI Technical Summary
During the drying process of fine grilles, the heat is uneven due to accumulation of fine grilles, resulting in frequent blockage of subsequent conveying pipelines.
A secondary material pushing device for fine grid drying device is adopted to prevent fine grid slag from a pile up at the feed port of the drying device through a primary material pusher, and the fine grid slag is evenly distributed through the secondary material pusher to avoid pipeline blockage caused by accumulation.
It effectively avoids pipeline blockage caused by accumulation of materials, ensures that the fine grating slag is evenly distributed, achieves the best drying effect, and reduces the probability of transmission pipeline blockage, and improves the safety and operation efficiency of the equipment.
Smart Images
Figure CN222895490U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage treatment, and more specifically to a secondary material pushing device for a fine grid drying device. Background Art
[0002] In the daily operation of sewage treatment plants, screens are the first treatment process after sewage enters the sewage treatment plant. Usually, screens are divided into three categories according to the net spacing of the bars: coarse screens (50-100mm), medium screens (16-40mm), and fine screens (3-10mm); the function of the fine screen is to control the size of suspended pollutants in the water that eventually enters the subsequent treatment unit to prevent them from accumulating in the subsequent treatment unit, thereby causing damage to related equipment or affecting the effluent water quality; the screen residue obtained at the fine screen is generally squeezed by a press and then manually pushed into a trash can and transported out. Since the particle size of the fine screen residue particles is relatively small, transporting the fine screen residue in this way will cause a poor environment in the treatment workshop and is time-consuming and labor-intensive.
[0003] Therefore, in order to ensure the workshop environment for fine screen slag treatment and solve the time-consuming and labor-intensive problem of manual transportation, the pretreatment workshop of the sewage plant was deeply analyzed and studied, and finally the open sewage pretreatment area on the ground was transferred to the underground sealed space, and the vacuum adsorption principle was used to transport the screen slag and sand from various places to the ground layer through pipeline sealing, while the above-ground part can be transformed into a garden-style landscape, and the transformation of the pretreatment ultra-clean space of the sewage plant was completed on this basis. However, in the process of using pipelines to transport fine screen slag, the fine screen slag needs to be dried and pre-treated before it can be transported. However, the fine screen slag is unevenly heated due to the accumulation of fine screen slag during the drying process. In this way, although the surface heating and drying conditions meet the requirements, the moisture content of the material accumulated inside is still high, and this part of the wet material is subjected to vacuum adsorption pipelines, which will frequently cause the problem of pipeline blockage. Utility Model Content
[0004] In view of the above-mentioned defects existing in the prior art, the purpose of the utility model is to provide a two-stage pushing device for a fine grid drying device. The two-stage pushing method can prevent the fine grid residue from accumulating at the feed port of the drying device, so that the fine grid residue is evenly distributed, effectively avoiding the problem of pipeline blockage due to material accumulation.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] The utility model provides a two-stage material pushing device for a fine grid drying device, comprising a first-stage material pushing device and a second-stage material pushing device arranged below a material inlet of the fine grid drying device;
[0007] The first-stage pusher and the second-stage pusher are installed on the fine grid drying device through a fixing box;
[0008] The first-stage pusher is arranged above the second-stage pusher, and the first-stage pusher includes a first cylinder, a first connecting rod telescopically connected to the first cylinder, and a transverse wall-type pusher plate connected to the first connecting rod; the first connecting rod passes through a fixed box and extends into the fine grid drying device; the transverse wall-type pusher plate is arranged inside the fine grid drying device; the first-stage pusher pushes the first connecting rod and the transverse wall-type pusher plate horizontally in the fine grid drying device through the first cylinder;
[0009] The secondary pusher includes a second cylinder, a second connecting rod connected to the second cylinder, and a longitudinal push plate connected to the second connecting rod, the second connecting rod passes through the fixed box and extends into the fine grid drying device; the longitudinal push plate is arranged at the bottom of the fine grid drying device, and is provided with multiple groups of inverted teeth and multiple groups of ventilation holes; the secondary pusher pushes the second connecting rod and the longitudinal push plate in the fine grid drying device through the second cylinder to push the material.
[0010] Preferably, the lateral width of the transverse wall-type push plate is ≤ the width of the longitudinal push plate.
[0011] Preferably, the transverse wall push plate is perpendicular to the longitudinal push plate, and a gap is left between the transverse wall push plate and the inverted teeth on the longitudinal push plate.
[0012] Preferably, at least 3 groups of inverted teeth and 3 groups of air holes are arranged on the longitudinal push plate, and the multiple air holes in each group of air holes and the multiple inverted teeth in each group of inverted teeth are alternately arranged; each group of inverted teeth includes at least 5 inverted teeth, and the number of air holes in each group is one more than the number of inverted teeth in each group.
[0013] Preferably, the first-stage pusher pushes the material in a timed start-stop pushing manner.
[0014] Preferably, the second cylinder is a cylinder with a cylinder diameter of 50 mm and a stroke of 150 mm, a pressure greater than 0.6 MPa, and a total gas consumption less than 0.15 m 3 .
[0015] The two-stage material pushing device for a fine grid drying device provided by the utility model has the following advantages:
[0016] 1. The two-stage pushing device for the fine grid drying device of the utility model adopts a two-stage pushing method, which fundamentally solves the problem of the conveying pipeline being blocked due to the accumulation of materials in the drying device, and effectively avoids the situation where the pipeline is blocked by the accumulated materials and affects the normal feeding;
[0017] 2. The two-stage pushing device for the fine grid drying device of the utility model adopts a pusher controlled by a cylinder. The first-stage pushing can prevent the fine grid residue from accumulating at the feed port of the drying device, and can also realize timed pushing. The second-stage pushing can make the fine grid residue evenly distributed, thereby achieving the best drying effect.
[0018] 3. The secondary pushing device for the fine grid drying device of the utility model effectively reduces the probability of fine grid slag blocking the conveying pipeline, and provides technical guarantee for the safe and reliable operation of the fine grid equipment and vacuum conveying system;
[0019] 4. The utility model can reduce the maintenance cost of fine grid slag transportation, improve equipment safety, improve automatic operation capability, solve the problem of transportation pipeline blockage, and play a good role in material diversion;
[0020] 5. The utility model has a simple structure and is easy to operate. It can efficiently and evenly distribute materials, reduce the moisture content of fine grid slag garbage, and improve the practicability and operating efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a structural schematic diagram of a two-stage material pushing device for a fine grid drying device of the utility model;
[0022] Figure 2 It is a layout diagram of the two-stage pushing device of the utility model; (a) is a schematic diagram of the installation of the two-stage pushing device in the drying device, (b) is a layout diagram of the first-stage pushing device, and (c) is a layout diagram of the second-stage pushing device;
[0023] Figure 3 It is a structural schematic diagram of the first-stage pusher of the utility model;
[0024] Figure 4 It is a structural schematic diagram of the two-stage pusher of the utility model;
[0025] In the figure, 10, first-stage pusher; 11, first cylinder; 12, first connecting rod; 13, horizontal wall pusher plate; 20, second-stage pusher; 21, second cylinder; 22, second connecting rod; 23, longitudinal pusher plate; 24, inverted teeth; 25, ventilation holes; 30, fine grid drying device; 31, feed inlet; 32, fixed box. DETAILED DESCRIPTION
[0026] In order to better understand the above technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0027] During the operation of the sewage treatment plant, the original open-type sewage pretreatment on the ground is transferred to the underground sealed space for treatment, and the screen residue is transported to the ground layer through a pipeline-type closure in the underground sealed space by vacuum adsorption. At the same time, crushing, dehydration, drying equipment and other devices are installed in the underground sealed space to facilitate the treatment of various screen residues of different properties generated in the sewage pretreatment process. The above-ground part can be transformed into a garden-style landscape, thereby reducing environmental pollution during sewage treatment, effectively improving the plant environment of the sewage treatment plant, and improving the air quality in the plant area, thereby completing the transformation of the sewage treatment plant pretreatment ultra-clean space.
[0028] The utility model is one of the important technologies in the reconstruction plan of the ultra-clean space of the sewage treatment plant pretreatment. The secondary pushing device is used to further supplement the function of the drying equipment. In the process of drying the fine screen slag, the secondary pushing device is used to effectively reduce the probability of subsequent conveying pipeline blockage caused by uneven heating of the fine screen slag due to material accumulation in the drying device, thereby providing technical guarantee for the safe and reliable operation of the fine screen equipment and the vacuum conveying system.
[0029] Combination Figure 1 , Figure 2 As shown, the utility model provides a two-stage pushing device for a fine grid drying device, comprising a first-stage pusher 10 and a second-stage pusher 20 arranged below a feed inlet 31 of the fine grid drying device 30; the first-stage pusher 10 and the second-stage pusher 20 are installed on the fine grid drying device 30 through a fixing box 32. The utility model adopts a two-stage pushing method, and the first-stage pusher 10 is used to prevent the fine grid residue from accumulating below the feed inlet 31 of the drying device, and the second-stage pusher 20 is used to evenly distribute the fine grid residue to achieve the best drying effect.
[0030] Combination Figure 2 In (a) and (b), Figure 3 As shown, the first-stage pusher 10 is arranged above the second-stage pusher 20, and the first-stage pusher 10 includes a first cylinder 11, a first connecting rod 12 telescopically connected to the first cylinder 11, and a transverse wall pusher plate 13 connected to the first connecting rod 12; the first connecting rod 12 passes through a fixed box 32 and extends into the fine grid drying device 30; the transverse wall pusher plate 13 is arranged inside the fine grid drying device 30; the first-stage pusher 10 pushes the first connecting rod 12 and the transverse wall pusher plate 13 horizontally in the fine grid drying device 30 through the first cylinder 11.
[0031] Combination Figure 2 (a) and (c) Figure 4As shown, the secondary pusher 20 includes a second cylinder 21, a second connecting rod 22 connected to the second cylinder 21, and a longitudinal push plate 23 connected to the second connecting rod 22, the second connecting rod 22 passes through a fixed box 32 and extends into the fine grid drying device 30; the longitudinal push plate 23 is arranged near the bottom of the fine grid drying device 30, and a plurality of groups of inverted teeth 24 and a plurality of groups of ventilation holes 25 are provided on the longitudinal push plate 23; the secondary pusher 20 pushes the second connecting rod 22 and the longitudinal push plate 23 in the fine grid drying device 30 through the second cylinder 21 to push the material.
[0032] Combination Figure 1 , Figure 2 As shown in (a) and (b), the transverse width of the transverse wall pusher plate 13 is ≤ the width of the longitudinal pusher plate 23. The transverse wall pusher plate 13 is perpendicular to the longitudinal pusher plate 23, and a gap is left between the transverse wall pusher plate 13 and the inverted teeth 24 on the longitudinal pusher plate 23. The transverse wall pusher plate 13 is arranged transversely in the fine grid drying device, and its width is close to the width of the fine grid drying device, so that the fine grid residue falling from the feed port 31 can be pushed horizontally.
[0033] Combination Figure 2 (c) and Figure 4 As shown, at least three groups of inverted teeth 24 and three groups of air holes 25 are arranged on the longitudinal push plate 23, and the multiple air holes 25 of each group of air holes 25 are alternately arranged with the multiple inverted teeth 24 of each group of inverted teeth 24, that is, an air hole 25 is arranged in the gap between adjacent inverted teeth 24, so that hot air for drying fine grid residue can be blown in from the bottom; each group of inverted teeth 24 includes at least 5 inverted teeth 24, and the number of air holes 25 in each group is one more than the number of inverted teeth 24 in each group. In a certain embodiment, three groups of inverted teeth 24 and three groups of air holes 25 are arranged on the longitudinal push plate 23 of the secondary pusher 20, five inverted teeth 24 are arranged in each group, six air holes 25 are arranged in each group, and the inverted teeth 24 and the air holes 25 are alternately arranged.
[0034] The second cylinder 21 is a cylinder with a cylinder diameter of 50 mm and a stroke of 150 mm. Its pressure is greater than 0.6 MPa and the total gas consumption is less than 0.15 m 3 .
[0035] The first-stage pusher 10 adopts a timed start-stop pushing method, such as pushing for 28 to 30 seconds and stopping for 5 to 6 minutes. During the time when the first-stage pusher 10 stops pushing, the fine grid drying device 30 dries the fine grid residue and takes away the moisture therein; the second-stage pusher 20 pushes 3 times per second and the first-stage pusher pushes once, so that the pushed garbage can be evenly distributed to achieve the best drying effect.
[0036] The utility model is one of the important technologies in the reconstruction plan of the pre-treatment ultra-clean space of the sewage treatment plant, which improves the reconstruction plan of the pre-treatment ultra-clean space of the sewage treatment plant. It adopts a two-stage material pushing method, which can prevent the fine grid residue from accumulating at the feed port of the drying device, so that the fine grid residue is evenly distributed, and effectively avoids the problem of pipeline blockage due to material accumulation.
[0037] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.
Claims
1. A two-stage material pushing device for a fine grid drying device, characterized in that: It includes a primary pusher and a secondary pusher arranged below the feed inlet of the fine grid drying device; The first-stage pusher and the second-stage pusher are installed on the fine grid drying device through a fixing box; The first-stage pusher is arranged above the second-stage pusher, and the first-stage pusher includes a first cylinder, a first connecting rod telescopically connected to the first cylinder, and a transverse wall-type pusher plate connected to the first connecting rod; the first connecting rod passes through a fixed box and extends into the fine grid drying device; the transverse wall-type pusher plate is arranged inside the fine grid drying device; the first-stage pusher pushes the first connecting rod and the transverse wall-type pusher plate horizontally in the fine grid drying device through the first cylinder; The secondary pusher comprises a second cylinder, a second connecting rod connected to the second cylinder, and a longitudinal push plate connected to the second connecting rod, wherein the second connecting rod passes through the fixed box and extends into the fine grid drying device; the longitudinal push plate is arranged at the bottom of the fine grid drying device, and a plurality of groups of inverted teeth and a plurality of groups of ventilation holes are arranged on the longitudinal push plate; The secondary pusher pushes the second connecting rod and the longitudinal push plate through the second cylinder to push the material in the fine grid drying device.
2. The two-stage material pushing device for a fine grid drying device according to claim 1 is characterized in that: The transverse width of the transverse wall-type pushing plate is ≤ the width of the longitudinal pushing plate.
3. The two-stage material pushing device for a fine grid drying device according to claim 1 is characterized in that: The transverse wall type push plate is perpendicular to the longitudinal push plate, and a gap is left between the transverse wall type push plate and the inverted teeth on the longitudinal push plate.
4. The two-stage material pushing device for a fine grid drying device according to claim 1 is characterized in that: At least three groups of inverted teeth and three groups of ventilation holes are arranged on the longitudinal push plate, and the multiple ventilation holes in each group of ventilation holes and the multiple inverted teeth in each group of inverted teeth are arranged alternately; each group of inverted teeth includes at least 5 inverted teeth, and the number of ventilation holes in each group is one more than the number of inverted teeth in each group.
5. The two-stage material pushing device for a fine grid drying device according to claim 1 is characterized in that: The first-stage pusher adopts a timing start-stop pushing method to push materials.
6. The two-stage material pushing device for a fine grid drying device according to claim 1, characterized in that: The second cylinder is a cylinder with a 50mm bore and a 150mm stroke, and its pressure is greater than 0.6MPa, and the total gas consumption is less than 0.15m 3 .