Mesh belt structure of sludge low-temperature drying machine
By shortening the length of the first mesh belt transmission device in the sludge low-temperature dryer and setting a sludge scraping conveyor and cleaning device, the problems of sludge adhesion and high moisture content discharge direction are solved, and effective drying of sludge and maintenance costs are achieved.
Patent Information
- Application Number
- CN202421839390.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In existing low-temperature sludge dryers, the sludge is prone to stick to it during the flip of the plate, resulting in some sludge not entering the subsequent mesh belt for treatment, increasing the removal cost. At the same time, the problem of sludge discharge direction with high moisture content is more obvious.
A mesh belt structure of a sludge low-temperature dryer is designed to ensure that the sludge is transported again and continuously dry by shortening the length of the first mesh belt transmission device so that its tail end falls into the flip of the second mesh belt transmission device. At the same time, a bottom sludge scraping conveyor belt and material cleaning device are installed to effectively remove sludge adhered to the flip plate.
The amount of sludge falling into the bottom is reduced, maintenance costs are reduced, and the effect of sludge drying is improved, solving the problems of sludge adhesion and high moisture content discharge direction.
Smart Images
Figure CN222906702U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sludge drying, and particularly relates to a mesh belt structure of a sludge low-temperature dryer. Background Art
[0002] The one-flip-two mesh belt is a new type of mesh belt structure for low-temperature dryers, which improves the efficiency on the basis of traditional material transportation. It changes the independent multi-layer mesh belt into multi-layer linkage. After the sludge on the first layer of the mesh belt is conveyed to the tail transmission device, it is tilted and unloaded through a flap and a special track design, and then enters the second layer and continues to run in the opposite direction of the first layer, making full use of the stroke and solving the problem of space waste in the multi-layer structure. However, when the flap flips, some sludge adheres to the vertical flap, falls off to the bottom of the device after entering the tail drive device, and does not enter the subsequent mesh belt for dehydration treatment, increasing the cleaning cost. Moreover, since the moisture content of the sludge on the first layer in the discharge direction is higher, this problem may be more obvious. Content of the Utility Model
[0003] To solve the above technical problems, the utility model provides a mesh belt structure of a sludge low-temperature dryer, which includes a first mesh belt drive device and a second mesh belt drive device;
[0004] The second mesh belt drive device is located below the first mesh belt drive device. The length of the second mesh belt drive device is greater than that of the first mesh belt drive device, and the tail end of the second mesh belt drive device extends to the outside of the first mesh belt drive device;
[0005] A bottom sludge scraping conveyor belt is arranged below the second mesh belt drive device, and the running directions of the bottom sludge scraping conveyor belts are the same.
[0006] Preferably: The first mesh belt drive device includes a first mesh belt layer and a second mesh belt layer. The front end of the first mesh belt layer is connected to the tail end of the second mesh belt layer, and the front end of the second mesh belt layer is connected to the tail end of the first mesh belt layer to form a first ring structure.
[0007] Preferably: A first machine head is arranged inside one end of the first ring structure, and a first drive device is arranged inside the other end of the first ring structure.
[0008] Preferably: The second mesh belt drive device includes a third mesh belt layer and a fourth mesh belt layer. The front end of the third mesh belt layer is connected to the tail end of the fourth mesh belt layer, and the front end of the fourth mesh belt layer is connected to the tail end of the third mesh belt layer to form a second ring structure.
[0009] Preferably: A second machine head is arranged inside one end of the second ring structure, and a second drive device is arranged inside the other end of the second ring structure.
[0010] Preferably, the first mesh belt layer, the second mesh belt layer, the third mesh belt layer and the fourth mesh belt layer each include a plurality of interconnected flap plates, and one end of each flap plate is connected to a through rod.
[0011] Preferably, the length of the through rod is greater than the length of the flap plate, and both ends of the through rod are connected to a chain.
[0012] Preferably, a spacer sleeve is sleeved on the through rod between the chain and the flap plate to limit the flap plate through the spacer sleeve.
[0013] Preferably, a first material cleaning device is provided at the tail end of the first mesh belt layer to scrape off impurities adhering to the flap plate through the first material cleaning device.
[0014] Preferably, a second material cleaning device is provided at the tail end of the third mesh belt layer to scrape off impurities adhering to the flap plate through the second material cleaning device.
[0015] Technical effects and advantages of the present utility model:
[0016] In the present utility model, by shortening the length of the first mesh belt transmission device, before the sludge falling to the bottom at the tail end of the first mesh belt transmission device falls into the turning part of the second mesh belt transmission device, it can be conveyed again and still can be continuously dried, reducing the amount of sludge falling to the bottom and reducing the maintenance cost. Description of the drawings
[0017] Figure 1 is a schematic structural diagram of the mesh belt structure of the sludge low-temperature dryer provided by the embodiment of the present application;
[0018] Figure 2 is a schematic connection structure diagram of the flap plate in the mesh belt structure of the sludge low-temperature dryer provided by the embodiment of the present application.
[0019] In the figure: 1, chain; 2, through rod; 301, flap plate; 302, flap wheel; 4, spacer sleeve; 5, retaining wheel; 6, first mesh belt layer; 7, second mesh belt layer; 8, third mesh belt layer; 9, fourth mesh belt layer; 10, first machine head; 11, first driving device; 12, first material cleaning device; 13, level resistance rotation switch detection device; 14, bottom sludge scraping conveyor belt; 15, second machine head; 16, second driving device; 17, second material cleaning device. Detailed implementation manners
[0020] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limited to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present utility model, and to enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.
[0021] Please refer to Figure 1 As shown, in this embodiment, a sludge low-temperature drying machine belt structure is provided, which includes a first belt drive device and a second belt drive device. The second belt drive device is located below the first belt drive device. The length of the second belt drive device is greater than the length of the first belt drive device. The tail end of the second belt drive device extends to the outside of the first belt drive device. When the residual sludge of the first belt conveyor device reaches the tail, it falls onto the second belt drive device, so that the sludge is conveyed again, and the sludge is continuously dried, reducing the amount of sludge falling to the bottom and reducing the maintenance cost.
[0022] Furthermore, a bottom sludge scraping conveyor belt 14 is provided below the second belt drive device. The bottom sludge scraping conveyor belt 14 runs in the same direction and includes a chain 1 and a through rod 2. The two chains 1 are arranged in pairs. The two ends of the through rod 2 are connected to the chain 1. A scraper is fixed on the through rod 2. The sludge falling to the bottom of the device is pushed to the discharge port by the bottom sludge scraping conveyor belt 14. Level obstruction rotary switch detection devices 13 are provided on both sides of the bottom sludge scraping conveyor belt 14. One level obstruction rotary switch detection device 13 is located in front of the discharge device and is used to detect whether the subsequent discharge device is blocked and piled up too high. The other level obstruction rotary switch detection device 13 is located above the bottom sludge scraping conveyor belt 14 and is used to detect whether the bottom sludge is piled up too high.
[0023] Specifically, the first belt drive device includes a first belt layer 6 and a second belt layer 7. The front end of the first belt layer 6 is connected to the tail end of the second belt layer 7, and the front end of the second belt layer 7 is connected to the tail end of the first belt layer 6, forming a first annular structure. A first head 10 is provided inside one end of the first annular structure, and a first driving device 11 is provided inside the other end of the first annular structure. Starting the first driving device 11 can drive the first annular structure to rotate.
[0024] Specifically, the second mesh belt transmission device includes a third mesh belt layer 8 and a fourth mesh belt layer 9. The front end of the third mesh belt layer 8 is connected to the tail end of the fourth mesh belt layer 9, and the front end of the fourth mesh belt layer 9 is connected to the tail end of the third mesh belt layer 8, forming a second annular structure. A second machine head 15 is arranged inside one end of the second annular structure, and a second driving device 16 is arranged inside the other end of the second annular structure. Starting the second driving device 16 can drive the second annular structure to rotate.
[0025] Please refer to Figure 2 As shown, the first mesh belt layer 6, the second mesh belt layer 7, the third mesh belt layer 8, and the fourth mesh belt layer 9 all include a plurality of interconnected flap plates 301. One side end of the flap plate 301 is connected to a through rod 2. The length of the through rod 2 is greater than the length of the flap plate 301. Both ends of the through rod 2 are connected to a chain 1. Two chains 1 are arranged in pairs and are driven by a driving device.
[0026] Further, a spacer sleeve 4 is sleeved on the through rod 2 between the chain 1 and the flap plate 301 to limit the flap plate 301, avoiding large displacement of the flap plate 301 along the through rod 2, thereby improving the stability of the movement of the flap plate 301.
[0027] Further, the other side end of the flap plate 301 is connected to a flap wheel 302. There are two flap wheels 302, which are located at both ends of the flap plate 301. The flap wheels 302 move along the track and play a supporting role for the flap plate 301.
[0028] Further, a retaining wheel 5 is arranged on the outer side wall of the chain 1 to protect the chain 1.
[0029] In specific implementation, a plurality of flap plates 301 are linked to the through rod 2. The flap plates 301 at the tail ends of the first mesh belt layer 6 and the third mesh belt layer 8 move to the driving device, and the second mesh belt layer 7 and the fourth mesh belt layer 9 are flipped by an external track, so that the sludge falls into the next layer of the mesh belt or is directly sent out from the discharge port.
[0030] Further, a first material cleaning device 12 is arranged at the tail end of the first mesh belt layer 6 to scrape off the residual sludge that may adhere to the flap plate 301 and make it enter the next mesh belt layer.
[0031] Further, a second material cleaning device 17 is arranged at the tail end of the third mesh belt layer 8 to scrape off the residual sludge that may adhere to the flap plate 301 and make it enter the next mesh belt layer.
[0032] The working principle of the present utility model is:
[0033] By shortening the length of the first belt drive device, before the end of the first belt drive device drops the sludge that has fallen to the bottom into the turning part of the second belt drive device, the sludge can be conveyed again and still be continuously dried, reducing the amount of sludge falling to the bottom and lowering the maintenance cost.
[0034] In addition, the sludge adhering to the turning plate 301 in the first belt layer 6 is scraped into the still vertically oriented turning plate 301 by the provided first material cleaning device 12 and enters the second belt layer 7. Similarly, the sludge adhering to the turning plate 301 in the third belt layer 8 is scraped into the still vertically oriented turning plate 301 by the provided second material cleaning device 17 and enters the fourth belt layer 9 and then enters the subsequent processing equipment.
[0035] The sludge that still falls to the bottom of the device after passing through the first belt conveyor device and the second belt conveyor device is pushed into the discharge port through the bottom sludge scraping conveyor belt 14.
[0036] Through the first belt conveyor device, the second belt conveyor device and the bottom sludge scraping conveyor belt 14, the dust accumulation at the tail of the equipment can be effectively improved, the effect of sludge drying can be enhanced, and the maintenance cost of bottom ash cleaning and sludge removal can be reduced.
[0037] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the scope of protection of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.
Claims
1. A mesh belt structure of a sludge low-temperature drying machine, characterized in that: It includes a first mesh belt transmission device and a second mesh belt transmission device; The second mesh belt transmission device is located below the first mesh belt transmission device, the length of the second mesh belt transmission device is greater than the length of the first mesh belt transmission device, and the tail end of the second mesh belt transmission device extends to the outside of the first mesh belt transmission device; A bottom mud scraping conveyor belt (14) is arranged below the second mesh belt transmission device, and the bottom mud scraping conveyor belt (14) has the same running direction.
2. The mesh belt structure of a sludge low-temperature drying machine according to claim 1 is characterized in that: The first mesh belt transmission device comprises a first mesh belt layer (6) and a second mesh belt layer (7), the front end of the first mesh belt layer (6) is connected to the rear end of the second mesh belt layer (7), and the front end of the second mesh belt layer (7) is connected to the rear end of the first mesh belt layer (6), forming a first ring structure.
3. The mesh belt structure of a sludge low-temperature drying machine according to claim 2 is characterized in that: A first machine head (10) is arranged on the inner side of one end of the first annular structure, and a first driving device (11) is arranged on the inner side of the other end of the first annular structure.
4. The mesh belt structure of a sludge low-temperature drying machine according to claim 2 is characterized in that: The second mesh belt transmission device comprises a third mesh belt layer (8) and a fourth mesh belt layer (9), the front end of the third mesh belt layer (8) is connected to the rear end of the fourth mesh belt layer (9), and the front end of the fourth mesh belt layer (9) is connected to the rear end of the third mesh belt layer (8), forming a second ring structure.
5. The mesh belt structure of the sludge low-temperature drying machine according to claim 4 is characterized in that: A second machine head (15) is arranged on the inner side of one end of the second annular structure, and a second driving device (16) is arranged on the inner side of the other end of the second annular structure.
6. The mesh belt structure of the sludge low-temperature drying machine according to claim 5 is characterized in that: The first mesh belt layer (6), the second mesh belt layer (7), the third mesh belt layer (8) and the fourth mesh belt layer (9) all comprise a plurality of mutually connected flaps (301), and one side end of the flap (301) is connected to the through rod (2).
7. The mesh belt structure of the sludge low-temperature drying machine according to claim 6 is characterized in that: The length of the through rod (2) is greater than the length of the flap (301), and both ends of the through rod (2) are connected to the chain (1).
8. The mesh belt structure of the sludge low-temperature drying machine according to claim 7 is characterized in that: A spacer sleeve (4) is sleeved on the penetration rod (2) between the chain (1) and the flap (301), and the flap (301) is limited by the spacer sleeve (4).
9. The mesh belt structure of a sludge low-temperature drying machine according to claim 3, characterized in that: A first material cleaning device (12) is provided at the tail end of the first mesh belt layer (6), and impurities adhering to the flap (301) are scraped off by the first material cleaning device (12).
10. The mesh belt structure of a sludge low-temperature drying machine according to claim 5, characterized in that: A second material cleaning device (17) is provided at the tail end of the third mesh belt layer (8), and impurities adhering to the flap (301) are scraped off by the second material cleaning device (17).