Air supply device of rotary kiln

Abstract

The utility model relates to the technical field of air supply, in particular to a rotary kiln air supply device which comprises a pipe body, a three-way pipe is connected to the outer surface of the pipe body in an embedded mode, a cover body is connected to the upper end of the pipe body in a threaded mode, a clamping half ring is rotatably connected to the interior of the pipe body, and a screen is connected to the lower surface of the clamping half ring in a clamped mode. A mounting mechanism is rotationally connected to the inner surface of the clamping half ring, the mounting mechanism comprises a mounting ring, a threaded column and a scraper, bristles make contact with the screen, the screen can be scraped by rotating the mounting ring, sundries can fall into the collecting barrel easily, and the interior of the device can be cleaned conveniently in the later period; the large aperture of the screen does not cause large influence on air circulation, but can prevent external large-size impurities from entering the kiln, so that the pollution degree of the space in the kiln is reduced.

Description

Technical Field

[0001] This utility model relates to the field of air supply technology, specifically an air supply device for a rotary kiln. Background Technology

[0002] The main purpose of air supply in rotary kilns is to meet the needs of combustion, material heating, cooling, and maintaining the atmosphere inside the kiln. Generally, air supply equipment such as fans are installed at the air supply inlet. For reference, there is a rotary kiln air supply device described in announcement number CN221593456U. The device is characterized in that an external pipe is fixedly connected to the upper edge of the air supply pipe, a docking plate is coaxially fixedly connected to the upper end of the external pipe, a docking groove is coaxially opened on the upper end of the docking plate, a quick-release device is coaxially arranged at the docking groove, the quick-release device is locked in a connecting seat, and an electric heating rod extending into the air supply pipe is coaxially fixedly connected to the lower end of the connecting seat.

[0003] Although the above-mentioned device enables quick disassembly, large debris from the outside wind may enter the kiln, increasing the possibility of contamination of the kiln space. Furthermore, the quick disassembly makes it inconvenient to assist in scraping the inside of the device, resulting in a large amount of debris adhering to the inner wall, which increases the workload of subsequent cleaning. Utility Model Content

[0004] The purpose of this invention is to provide a rotary kiln air supply device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rotary kiln air supply device includes a pipe body, wherein a tee pipe is nested and connected to the outer surface of the pipe body;

[0007] The upper end of the tube is threadedly connected to a cover. The inside of the tube is rotatably connected to a snap-fit ​​half-ring. The lower surface of the snap-fit ​​half-ring is snapped with a screen. The inner surface of the snap-fit ​​half-ring is rotatably connected to an installation mechanism. The installation mechanism includes an installation ring, a threaded post, and a scraper. The installation ring is rotatably connected to the inner surface of the snap-fit ​​half-ring. The threaded post is rotatably connected to the outer surface of the installation ring. The scraper is embedded and slidably connected to the inside of the installation ring. The outer surface of the scraper is fixedly connected with bristles.

[0008] A resistance wire heater is movably connected to the upper surface of the mounting ring.

[0009] Furthermore, an air inlet pipe is fixedly connected to the outer surface of the tube body, and an air outlet pipe is fixedly connected to the outer surface of the tube body.

[0010] Furthermore, the inner surface of the snap-fit ​​half-ring is fixedly connected to a limiting half-ring, the outer surface of the snap-fit ​​half-ring is fixedly connected to a connecting half-ring, and a groove is formed on the lower surface of the snap-fit ​​half-ring.

[0011] Furthermore, the cover body has a first cavity and a second cavity inside. The inner wall of the first cavity is threaded and connected to the pipe body. The second cavity contacts the snap-fit ​​half ring, which can fix the snap-fit ​​half ring. The snap-fit ​​half ring is snapped into place by connecting the half ring and the upper port position of the pipe body.

[0012] Furthermore, there are two three-way pipes, which are nested and connected to the outer surfaces of the air inlet pipe and the air outlet pipe, respectively.

[0013] Furthermore, the mounting mechanism also includes a snap-fit ​​groove and a blocking plate. The snap-fit ​​groove is formed on the outer surface of the mounting ring and is slidably connected to the limiting half-ring. The blocking plate is fixedly connected to the outer surface of the threaded post. A knob is fixedly connected to the other end of the threaded post. The scraper is threadedly connected to the threaded post. The upper end of the scraper contacts the resistance wire heater, which can assist in fixing the resistance wire heater.

[0014] Furthermore, the lower end of the screen is nested with a collecting cylinder, the upper surface of the collecting cylinder is provided with a second groove, and the upper surface of the cover is provided with a wire hole, which provides space for the power cord of the resistance wire heater to extend.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The baffle plate, in conjunction with the knob, limits the position of the threaded column. When the threaded column rotates, the upper end of the scraper contacts the resistance wire heater under the push of the thread, making the resistance wire heater and the mounting ring tightly connected together. Conversely, the bristles contact the screen, and rotating the mounting ring can scrape the screen, which helps the debris fall into the collection cylinder, making it easier to clean the inside of the device later. The screen aperture is relatively large and will not have a significant impact on air circulation, but it will block large debris from entering the kiln, reducing the degree of contamination inside the kiln.

[0017] 2. After manually rotating the cover, the snap-fit ​​half-ring will lose its external fixation, and the screen, snap-fit ​​half-ring, and collection cylinder will be connected. After the cover is no longer limiting them, the snap-fit ​​half-ring can be removed, and the screen and collection cylinder can be directly and manually pulled out, which facilitates the disassembly of the internal parts of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the tube body of this utility model;

[0020] Figure 3 This is a schematic diagram of the disassembled screen structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation mechanism of this utility model.

[0022] In the diagram: 1. Pipe body; 101. Inlet pipe; 102. Outlet pipe; 2. T-connector; 3. Cover; 301. Wire hole; 302. First cavity; 303. Second cavity; 4. Snap-fit ​​half ring; 401. Limiting half ring; 402. Connecting half ring; 403. Groove No. 1; 5. Screen; 6. Collection cylinder; 601. Groove No. 2; 7. Mounting mechanism; 701. Mounting ring; 702. Snap-fit ​​groove; 703. Threaded post; 704. Blocking plate; 705. Knob; 706. Scraper; 707. Brush bristles; 8. Resistance wire heater. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 In this embodiment of the utility model, a rotary kiln air supply device includes a pipe body 1, and a three-way pipe 2 is nested and connected to the outer surface of the pipe body 1.

[0025] The upper end of the pipe body 1 is threadedly connected to the cover body 3. The inside of the pipe body 1 is rotatably connected to the snap-fit ​​half ring 4. The lower surface of the snap-fit ​​half ring 4 is snapped with the screen 5. The inner surface of the snap-fit ​​half ring 4 is rotatably connected to the mounting mechanism 7. The mounting mechanism 7 includes a mounting ring 701, a threaded post 703 and a scraper 706. The mounting ring 701 is rotatably connected to the inner surface of the snap-fit ​​half ring 4. The threaded post 703 is rotatably connected to the outer surface of the mounting ring 701. The scraper 706 is embedded and slidably connected to the inside of the mounting ring 701. The outer surface of the scraper 706 is fixedly connected to the bristles 707.

[0026] A resistance wire heater 8 is embedded in the upper surface of the mounting ring 701.

[0027] Specifically, during use, pipe body 1 and tee pipe 2 are connected and conductive. One of the tee pipes 2 is connected to an external air supply device, such as the outlet of a fan or air pump. Outside air enters the interior of pipe body 1 and is heated by the resistance wire heater 8, which reduces the loss of temperature inside the kiln. At the same time, the snap-fit ​​half-ring 4, together with the collection cylinder 6, fixes the screen 5. The screen 5 has a large aperture and will not significantly affect airflow, but it will block large debris from entering the kiln, reducing the degree of contamination inside the kiln. Two snap-fit ​​half-rings 4 are used, forming a cylinder installed at the upper end of pipe body 1. The snap-fit ​​half-rings 4 can be disengaged by manually rotating the cover 3. The external fixation facilitates the removal of the snap-fit ​​half-ring 4, further facilitating the maintenance of the resistance wire heater 8 and the collection of debris in the collection cylinder 6. After removing the cover 3, the inner top surface of the cover 3 separates from the resistance wire heater 8, losing its limiting function. At this time, manually rotating the threaded column 703 separates the upper end of the scraper 706 from the resistance wire heater 8, allowing the resistance wire heater 8 to be removed for maintenance. At this time, the brush bristles 707 contact the screen 5, and the mounting ring 701 can be manually rotated to allow the brush bristles 707 to scrape the screen 5, which helps debris fall into the collection cylinder 6 for cleaning the inside of the device.

[0028] Example 1

[0029] like Figure 1-4 As shown, a limiting half-ring 401 is fixedly connected to the inner surface of the snap-fit ​​half-ring 4, and a connecting half-ring 402 is fixedly connected to the outer surface of the snap-fit ​​half-ring 4. A groove 403 is formed on the lower surface of the snap-fit ​​half-ring 4. A first cavity 302 is formed inside the cover body 3, and a second cavity 303 is formed inside the cover body 3. The inner wall of the first cavity 302 is threaded and threadedly connected to the tube body 1. The second cavity 303 contacts the snap-fit ​​half-ring 4 and can fix the snap-fit ​​half-ring 4. The snap-fit ​​half-ring 4 is snapped into place by the connecting half-ring 402 and the upper port position of the tube body 1.

[0030] In this embodiment, the first cavity 302 and the second cavity 303 form a T-shaped hole structure, which can be used to fix the half ring 402 with threads, so as to realize the snap-fit ​​connection between the half ring 4 and the tube body 1.

[0031] like Figure 1-4 As shown, an air inlet pipe 101 is fixedly connected to the outer surface of the pipe body 1, an air outlet pipe 102 is fixedly connected to the outer surface of the pipe body 1, and there are two three-way pipes 2, which are nested and connected to the outer surfaces of the air inlet pipe 101 and the air outlet pipe 102 respectively.

[0032] In this embodiment, one of the three-way pipes 2 is connected to the air outlet of the fan or air pump, and the other three-way pipe 2 is connected to the air supply port of the rotary kiln, so as to realize the circulation of the air supply line.

[0033] Example 2

[0034] Based on Embodiment 1, in order to overcome the problem that it is inconvenient to perform auxiliary cleaning of the screen 5 while disassembling in Embodiment 1.

[0035] like Figure 1-4 As shown, the mounting mechanism 7 also includes a snap-fit ​​groove 702 and a blocking plate 704. The snap-fit ​​groove 702 is formed on the outer surface of the mounting ring 701. The snap-fit ​​groove 702 and the limiting half-ring 401 are slidably connected. The blocking plate 704 is fixedly connected to the outer surface of the threaded post 703. A knob 705 is fixedly connected to the other end of the threaded post 703. The scraper 706 is threadedly connected to the threaded post 703. The upper end of the scraper 706 contacts the resistance wire heater 8 and can assist in fixing the resistance wire heater 8. The lower end of the screen 5 is nested with a collecting cylinder 6. The upper surface of the collecting cylinder 6 is provided with a second groove 601. The upper surface of the cover 3 is provided with a wire hole 301. The wire hole 301 can provide space for the power cord of the resistance wire heater 8 to extend.

[0036] In this embodiment, the snap-fit ​​groove 702 is rotatably connected with the limiting half-ring 401 and the snap-fit ​​half-ring 4. The blocking plate 704 is used in conjunction with the knob 705 to limit the position of the threaded post 703. When the threaded post 703 rotates, the upper end of the scraper 706 contacts the resistance wire heater 8 under the push of the thread, so that the resistance wire heater 8 and the mounting ring 701 are tightly connected together. Conversely, the brush bristles 707 contact the screen 5. Rotating the mounting ring 701 can scrape the screen 5. The screen 5 is inserted into the snap-fit ​​half-ring 4 and the collection cylinder 6. After the limiting of the cover 3 is lost, the snap-fit ​​half-ring 4 can be removed. Furthermore, the screen 5 and the collection cylinder 6 can be directly and manually pulled out, which facilitates the disassembly of the internal parts of the device.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotary kiln air supply device, comprising a pipe body (1), wherein a three-way pipe (2) is nested and connected to the outer surface of the pipe body (1). Its features are, The upper end of the tube body (1) is threadedly connected to a cover (3), and the inside of the tube body (1) is rotatably connected to a snap-fit ​​half-ring (4). A screen (5) is snapped onto the lower surface of the snap-fit ​​half-ring (4), and an installation mechanism (7) is rotatably connected to the inner surface of the snap-fit ​​half-ring (4). The installation mechanism (7) includes: Mounting ring (701) is rotatably connected to the inner surface of snap-fit ​​half ring (4); The threaded column (703) is rotatably connected to the outer surface of the mounting ring (701); A scraper (706) is embedded and slidably connected inside the mounting ring (701), and bristles (707) are fixedly connected to the outer surface of the scraper (706). A resistance wire heater (8) is embedded in the upper surface of the mounting ring (701).

2. The rotary kiln air supply device according to claim 1, characterized in that, An air inlet pipe (101) is fixedly connected to the outer surface of the pipe body (1), and an air outlet pipe (102) is fixedly connected to the outer surface of the pipe body (1).

3. The rotary kiln air supply device according to claim 1, characterized in that, The inner surface of the snap-fit ​​half ring (4) is fixedly connected to a limiting half ring (401), the outer surface of the snap-fit ​​half ring (4) is fixedly connected to a connecting half ring (402), and a groove (403) is formed on the lower surface of the snap-fit ​​half ring (4).

4. The rotary kiln air supply device according to any one of claims 1-3, characterized in that, The cover (3) has a first cavity (302) inside and a second cavity (303) inside. The inner wall of the first cavity (302) is threaded and connected to the tube (1). The second cavity (303) contacts the snap-fit ​​half ring (4) and can fix the snap-fit ​​half ring (4). The snap-fit ​​half ring (4) is snapped to the upper port position of the tube (1) by connecting half ring (402).

5. The rotary kiln air supply device according to any one of claims 1-3, characterized in that, There are two three-way pipes (2), which are nested and connected to the outer surfaces of the air inlet pipe (101) and the air outlet pipe (102), respectively.

6. The rotary kiln air supply device according to any one of claims 1-3, characterized in that, The installation mechanism (7) also includes: A snap-fit ​​groove (702) is formed on the outer surface of the mounting ring (701), and the snap-fit ​​groove (702) and the limiting half-ring (401) are slidably connected; A blocking plate (704) is fixedly connected to the outer surface of a threaded post (703). A knob (705) is fixedly connected to the other end of the threaded post (703). The scraper (706) is threadedly connected to the threaded post (703). The upper end of the scraper (706) is in contact with the resistance wire heater (8) and can assist in fixing the resistance wire heater (8).

7. The rotary kiln air supply device according to claim 1, characterized in that, The lower end of the screen (5) is nested with a collection cylinder (6). The upper surface of the collection cylinder (6) is provided with a second groove (601). The upper surface of the cover (3) is provided with a wire hole (301). The wire hole (301) can provide space for the power cord of the resistance wire heater (8) to extend.

Images