A scraper slag remover

Abstract

The present invention provides a scraper slag remover, which comprises a frame, side plates, a bottom plate, a drive assembly, a driving gear, a driven gear, a chain, a scraper and a discharge port; the drive assembly is used to drive the driving gear to rotate; the driving gear and the driven gear are arranged at both ends of the frame; the chain is arranged in a closed loop and meshes with the driving gear and the driven gear; the scraper is arranged on the chain; the discharge port is arranged at one end of the frame where the driving gear or the driven gear is installed; the scraper slag remover further comprises a chain baffle, which is arranged at the discharge port and used to prevent the chain from falling off from the driving gear or the driven gear; the minimum distance between the scraper and the bottom plate is 3-15 mm. The present invention makes the scraper slag remover more suitable for slag removal of a waste incinerator, greatly reduces the failure rate of the scraper slag remover, reduces the maintenance cost and improves the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical engineering equipment, and particularly relates to a scraper slag remover Background Art

[0002] The scraper slag remover is a device for removing furnace slag. By fixing scrapers on the chain and driving the chain to move by the driving device, the scrapers scrape the furnace slag at the bottom of the incinerator and make the furnace slag fall from the discharge port. The chain is a closed loop, so the scraper can cycle to scrape the furnace slag of the incinerator

[0003] The scraper slag remover is widely used in environmental protection projects, such as being arranged at the bottom of a waste incinerator to remove the furnace slag of the waste incinerator. Since the furnace slag of the waste incinerator has a complex composition and contains many residues with different degrees of combustion, different volumes and different strengths, it has a high slag removal difficulty. The existing plate slag remover is applied to the waste incinerator, and problems such as the cross-bar channel steel at the secondary discharge port being pulled off, the scraper being bent, and the chain derailing often occur during operation (for high-strength and large-volume residues). The frequency of various failures is very high, which affects the continuous operation of production, increases the maintenance cost and maintenance time, and is not conducive to the smooth progress of the production schedule Summary of the Invention

[0004] In order to solve the problems existing in the prior art, a scraper slag remover is proposed. By adding a chain baffle, chain derailment is avoided; the distance between the scraper and the bottom plate is shortened, avoiding hard objects getting stuck between the scraper and the bottom plate and causing excessive force on the chain. Furthermore, the scraper slag remover is more suitable for slag removal in waste incinerators, greatly reducing the failure rate of the scraper slag remover, reducing the maintenance cost and improving the production efficiency

[0005] In order to achieve the above technical effects, the specific technical solutions adopted by the present invention are as follows

[0006] A scraper slag remover includes a frame, side plates, a bottom plate, a driving assembly, a driving gear, a driven gear, a chain, a scraper and a discharge port; the driving assembly is used to drive the driving gear to rotate; the driving gear and the driven gear are arranged at both ends of the frame; the chain is arranged in a closed loop and meshes with the driving gear and the driven gear; the scraper is arranged on the chain; the discharge port is arranged at one end of the frame where the driving gear or the driven gear is installed

[0007] The scraper slag remover further includes a chain baffle, and the chain baffle is arranged at the discharge port for preventing the chain from falling off from the driving gear or the driven gear

[0008] The minimum distance between the scraper and the bottom plate is 3 - 15 mm

[0009] Further, the minimum distance between the scraper and the bottom plate is 6 mm.

[0010] Further, the slag remover further includes a chain pressing plate disposed on the frame for reducing the sway of the chain; the minimum clearance between the chain pressing plate and the scraper is 5 - 15 mm.

[0011] Further, the diameter of the connecting pin of the chain is greater than or equal to 3 mm.

[0012] Further, the diameter of the connecting pin of the chain is 3 - 5 mm.

[0013] Further, the length of the connecting pin of the chain is greater than or equal to 20 mm.

[0014] Further, the length of the connecting pin of the chain is 20 - 40 mm.

[0015] For the convenience of maintenance and further shortening of the maintenance cost, a gear maintenance opening is provided on the side plate, and the maintenance opening is disposed at the discharge port and coincides or partially coincides with the driving gear or the driven gear in the horizontal projection;

[0016] For the convenience of maintenance and further shortening of the maintenance cost, a chain maintenance opening is provided on the bottom plate; the chain maintenance opening extends at least 1500 mm away from the discharge port.

[0017] Further, the chain maintenance opening extends 500 - 1500 mm away from the discharge port.

[0018] The beneficial effects that the present invention can bring:

[0019] 1. By adding a chain baffle, the present invention avoids the derailment of the chain; by shortening the distance between the scraper and the bottom plate, it avoids hard objects from getting stuck between the scraper and the bottom plate, resulting in excessive stress on the chain. Furthermore, the scraper type slag remover is more suitable for slag removal in waste incinerators, greatly reducing the failure rate of the scraper type slag remover, reducing the maintenance cost and improving the production efficiency. Moreover, the present invention has the advantages of small modification difficulty and low modification cost for the existing scraper type slag remover.

[0020] 2. The present invention provides an optimal clearance size between the scraper and the bottom plate, enabling the bottom plate to effectively remove the adhered furnace slag on the scraper, while also avoiding foreign objects from getting stuck between the scraper and the bottom plate, playing a guiding role in the industry.

[0021] 3. The present invention provides an optimal clearance size between the chain pressing plate and the scraper, avoiding foreign objects from getting stuck between the chain pressing plate and the scraper, playing a guiding role in the industry.

[0022] 4. The present invention proposes the optimal size for the connecting pin and length of the chain, so that the strength of the chain meets the application of the waste incinerator field and the modification difficulty is small.

[0023] 5. Since the gear shaft in the direction of the discharge port is easily worn, it is necessary to cut the side plate and remove the entire gear during maintenance. The present invention provides an inspection port at the discharge port position to facilitate direct removal of the gear shaft, reducing maintenance costs.

[0024] 6. Since the chain may fall onto the bottom plate when it breaks or partially falls off, the present invention provides a large inspection port on the bottom plate. While the bottom plate is able to receive the residual slag on the scraper, the staff can visually observe the position where the chain breaks or partially falls off, and can easily remove the fallen part, further improving the maintenance efficiency of the scraper slag remover. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall diagram of the scraper type slag remover in an embodiment of the present invention.

[0026] Figure 2 It is an enlarged view of the discharge port of the scraper type slag remover in an embodiment of the present invention.

[0027] Among them: 1. Side panel; 2. Bottom plate; 3. Drive assembly; 4. Transmission gear; 5. Driven gear; 6. Chain; 11. Gear inspection port. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0029] In one embodiment of the present invention, Figure 1 or Figure 2 The figure shows a scraper-type slag remover, comprising a frame, side panels 1, bottom panel 2, drive assembly 3, transmission gear 4, driven gear 5, chain 6, scraper, and discharge port. The drive assembly 3 is mounted on the frame, used to rotate the transmission gear 4. The transmission gear 4 and driven gear 5 are arranged at opposite ends of the frame. The chain 6 is arranged in a closed loop, meshing with the transmission gear 4 and driven gear 5. The scraper is mounted on the chain 6. The discharge port is located at the end of the frame where the transmission gear 4 or driven gear 5 is mounted. For convenience, the discharge port is usually located at the end of the transmission gear; this is the installation guideline below.

[0030] The scraper type slag remover fixes a scraper on a chain 6, and the driving device drives the chain 6 to move, so that the scraper scrapes out the slag at the bottom of the incinerator and makes the slag fall from the discharge port. The chain 6 is a closed loop, so the scraper can cyclically scrape out the slag of the incinerator.

[0031] The above description explains the operating mechanism of the traditional scraper slag remover. The following are the innovations of the present invention:

[0032] The scraper slag remover further includes a chain 6 baffle made of wear-resistant PTFE. The chain 6 baffle is arranged at the discharge port and contacts the chain 6 to prevent the chain 6 from falling off from the driving gear 4 or the driven gear 5.

[0033] In order to enable the bottom plate 2 to effectively remove the residual slag adhered to the scraper and prevent hard objects from getting stuck in the gap between the bottom plate 2 and the scraper, the minimum distance between the scraper and the bottom plate 2 is set to 3 - 15 mm, and both of the above two technical effects can be achieved within this range.

[0034] In this embodiment, by adding a chain 6 baffle, the derailment of the chain 6 is avoided; the distance between the scraper and the bottom plate 2 is shortened, and the situation that hard objects get stuck between the scraper and the bottom plate 2, which causes the chain 6 to be subjected to too high a force, is avoided. Furthermore, the scraper slag remover is more suitable for slag removal in waste incinerators, greatly reducing the failure rate of the scraper slag remover, reducing the maintenance cost and improving the production efficiency.

[0035] In one embodiment, the minimum distance between the scraper and the bottom plate 2 is 6 mm. 6 mm is the optimal distance, which enables the bottom plate 2 to well remove the adhered slag on the scraper and at the same time avoids foreign objects from getting stuck between the scraper and the bottom plate 2, providing guiding data for the industry.

[0036] In one embodiment, the slag remover further includes a chain pressing plate arranged on the frame for reducing the shaking of the chain 6. In order to prevent foreign objects from getting stuck between the chain pressing plate and the scraper, the minimum gap between the chain pressing plate and the scraper is 5 - 15 mm. The above technical effects can be achieved within this range.

[0037] In one embodiment, in order to increase the bonding strength between the chains 6 and avoid the chains 6 from breaking due to excessive force caused by hard object jamming or other reasons at various parts of the scraper slag remover, the diameter of the connecting pin of the chain 6 is greater than or equal to 3 mm, so that the service strength of the chain 6 meets the application in the field of waste incinerators and the modification difficulty is small.

[0038] In one embodiment, the diameter of the connecting pin of the chain 6 is 3 - 5 mm. This embodiment provides guiding data for the industry.

[0039] In one embodiment, in order to increase the bonding strength between the chains 6 and avoid the chains 6 from breaking due to excessive force caused by hard object jamming or other reasons at various parts of the scraper slag remover, the length of the connecting pin of the chain 6 is greater than or equal to 20 mm, so that the service strength of the chain 6 meets the application in the field of waste incinerators and the modification difficulty is small.

[0040] In one embodiment, the length of the connecting pin of the chain 6 is 20 - 40 mm. This embodiment provides guiding data for the industry.

[0041] In one embodiment, to facilitate maintenance and further reduce repair costs, a gear inspection opening 11 is provided on the side panel 1. This access opening is located at the discharge port, partially overlapping with the transmission gear 4 in horizontal projection, and its horizontal projection area is larger than that of the transmission gear 4. Because the gear shaft in the direction of the discharge port is susceptible to wear, repairing it requires cutting the side panel 1 and removing the entire gear. The present invention provides an access opening at the discharge port, facilitating direct removal of the gear shaft and reducing repair costs.

[0042] In one embodiment, to facilitate maintenance and further reduce repair costs, a chain inspection opening is provided on the bottom plate 2; the chain inspection opening extends at least 1500mm from the discharge port. Because chain 6 may fall onto the bottom plate 2 if it breaks or partially falls off, the present invention provides a large inspection opening on the bottom plate 2. While ensuring that the bottom plate 2 can receive residual slag on the scraper, it also allows workers to visually observe the location of broken or partially fallen chain 6 and easily remove the fallen portion, further improving the maintenance efficiency of the scraper slag remover.

[0043] In one embodiment, the chain inspection port extends to 500-1500 mm from the discharge port. This embodiment provides guiding data for the industry.

[0044] The above embodiments are only intended to help understand the method and core concept of the present invention. It should be noted that, without departing from the principles of the present invention, a person skilled in the art may make several improvements and modifications to the present invention, and such improvements and modifications shall fall within the scope of protection of the claims of the present invention.

[0045] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but rather to be construed in the widest possible manner consistent with the principles and novel features disclosed herein.

Claims

1. A scraper slag remover, comprising a frame, side plates, a bottom plate, a drive assembly, a driving gear, a driven gear, a chain, a scraper and a discharge port; the drive assembly is used to drive the driving gear to rotate; the driving gear and the driven gear are arranged at both ends of the frame; the chain is arranged in a closed loop and meshes with the driving gear and the driven gear; the scraper is arranged on the chain; the scraper cyclically scrapes out the slag of the incinerator; the discharge port is arranged at one end of the frame where the driving gear or the driven gear is installed; characterized in that: The scraper slag remover is used to remove the slag of the waste incinerator, and the slag contains residues with different combustion degrees, different volumes and different strengths. The scraper slag remover further includes a chain baffle, and the chain baffle is arranged at the discharge port for preventing the chain from falling off from the driving gear or the driven gear. The minimum distance between the scraper and the bottom plate is 3-15 mm. The bottom plate is used to remove the residual slag adhered to the scraper. The minimum distance enables the bottom plate to effectively remove the residual slag adhered to the scraper and prevents hard objects from getting stuck in the gap between the bottom plate and the scraper. The slag remover further includes a chain pressing plate for reducing the shaking of the chain; the minimum gap between the chain pressing plate and the scraper is 5-15 mm. The diameter of the connecting pin of the chain is greater than or equal to 3 mm.

2. The scraper slag remover according to claim 1, wherein: The minimum distance between the scraper and the bottom plate is 6 mm.

3. The scraper slag remover according to claim 1, characterized in that: The diameter of the connecting pin of the chain is 3-5 mm.

4. The scraper slag remover according to claim 1, characterized in that: The length of the connecting pin of the chain is greater than or equal to 20 mm.

5. The scraper slag remover according to claim 4, characterized in that: The length of the connecting pin of the chain is 20-40 mm.

6. The scraper slag remover according to claim 1, characterized in that: A gear inspection opening is arranged on the side plate, and the inspection opening is arranged at the discharge port and coincides or partially coincides with the driving gear or the driven gear in the horizontal projection.

7. The scraper slag remover according to claim 1, wherein: A chain inspection opening is arranged on the bottom plate; the chain inspection opening extends at least 1500 mm away from the discharge port.

8. The scraper slag remover according to claim 7, characterized in that: The chain inspection opening extends 500-1500 mm away from the discharge port.

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