Kiln head structure capable of recycling waste heat
By designing structures such as heat recovery boxes and heat extraction pipes in the kiln, the problems of heat temperature fluctuations and heat consumption and cooling of the kiln are solved, and the stable storage and secondary recycling of heat is achieved, and the efficiency of the kiln is improved.
Patent Information
- Application Number
- CN202421012120.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-11
AI Technical Summary
During the heat collection process, the heat temperature fluctuates due to different temperatures, and the collected heat cannot be heated insulated, resulting in heat consumption and cooling, affecting the efficiency of the device.
A kiln head structure including a heat recovery box, a heat extraction pipe, a partition plate, a connecting pipe and a temperature detector was designed. The heat recovery box is divided into three parts by a partition plate, and heat heating is used for heat heating using a heat extraction pipe and a connecting pipe. and store, and monitor heat in real time through a temperature detector to ensure stable heat storage and secondary recycling.
It effectively avoids heat temperature fluctuations, realizes stable storage and secondary recycling of heat, saves heat energy consumption in the later stage of the kiln, and ensures stable storage and efficient utilization of heat.
Smart Images
Figure CN222257756U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kilns, in particular to a kiln head structure capable of recovering waste heat. Background Art
[0002] A kiln is a heating equipment used in industrial production, mainly composed of a furnace body, a combustion system, a heating system, a control system, a transmission system and other parts. The furnace body is usually made of steel plates, refractory materials, etc., and is used to contain raw materials and undergo physical or chemical changes. The combustion system is responsible for providing fuel, such as gas, oil, coal, etc., to generate heat energy through combustion, and the heating system transfers the heat energy generated by the combustion to the raw materials, causing them to react or melt under certain temperature and atmosphere conditions. Kilns are widely used in metallurgy, chemical industry, building materials, ceramics, glass, electronics, food and other industries, and their uses include sintering, smelting, roasting, drying, carbonization, vulcanization, oxidation and other processes. A large amount of heat is generated when the kiln is in use, and a kiln head structure with waste heat recovery is proposed for use.
[0003] The existing referenceable Chinese utility model patent with announcement number: CN207622547U discloses a kiln waste heat recovery device, which belongs to the field of energy-saving and environmental protection technology in the ceramic industry. The technical scheme includes: a preheating section, a firing section, a quenching section and a waste heat pipe, the preheating section and the firing section are connected to the quenching section through the waste heat pipe, a heat extraction fan is arranged between the waste heat pipe and the quenching section, and the waste heat pipe is provided with a one-way valve; the one-way valve includes a valve flap, an air inlet pipe and an air outlet pipe, one end of the air inlet pipe is close to the quenching section, the other end of the air inlet pipe is a first mounting end, the port surface of the first mounting end is at an acute angle or an obtuse angle with the axis of the air inlet pipe, the valve flap is hinged to the first mounting end and can be attached to and separated from the port surface; one end of the air outlet pipe is close to the firing section, the other end of the air outlet pipe is a second mounting end, the second mounting end is sleeved on the first mounting end, and the aperture of the port of the first mounting end is smaller than the aperture of the port of the second mounting end. The kiln waste heat recovery device is scientifically and reasonably designed, which can prevent hot gas backflow and is conducive to the full recovery and utilization of waste heat.
[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that since the kiln will generate a large amount of heat during use, the temperature of the kiln is different when the heat is collected, resulting in different collected heat. The different temperatures mixed together will cause the collected temperature to fluctuate, resulting in fluctuations in the temperature of the collected heat, and the heat cannot be insulated and heated after collection, which can easily lead to heat consumption and cooling. The existence of these problems affects the use of the device. Utility Model Content
[0005] 1. Technical issues to be resolved
[0006] In view of the deficiencies in the prior art, the utility model provides a kiln head structure capable of recovering waste heat, which has the advantages of heat insulation and heat temperature monitoring, and solves the above-mentioned technical problems.
[0007] (II) Technical solution
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kiln head structure capable of waste heat recovery, comprising a heat recovery box, an equipment heat preservation mechanism is installed at the rear of the interior of the heat recovery box, a waste heat recovery pipeline mechanism is connected to the front of the heat recovery box, and the equipment heat preservation mechanism comprises: a heat extraction pipe installed at the rear of the interior of the heat recovery box, a partition plate is installed in front of the heat extraction pipe, a fixing ring is installed on the outside of the heat extraction pipe, and one end of the heat extraction pipe is connected to a connecting pipe, and one end of the connecting pipe is installed with a control box for equipment heating;
[0009] The waste heat recovery pipeline mechanism includes: an inlet box connected to the front wind of the heat recovery box, a branch pipe is connected to the front of the inlet box, a swivel is connected between the branch pipe and the inlet box, and a valve for controlling the inlet and outlet of heat is installed above the swivel, and a recovery compartment box for separation and storage is installed behind the inlet box.
[0010] As a preferred technical solution of the utility model, a temperature detector is installed on the top of the reheat box, and a recovery main pipe is connected to the front of the branch pipe; the reheat box can preserve heat.
[0011] As a preferred technical solution of the utility model, a mounting rod is fixedly installed below the temperature detector, a base plate is installed in the middle and lower part of the mounting rod, and an equipment detector is installed at the bottom of the mounting rod; the equipment detector can detect the heat inside the heat recovery box.
[0012] As the preferred technical solution of the utility model, the partition plate divides the heat recovery box into three parts at equal distances, and the heat extraction pipe is horizontally connected to the inner rear of the heat recovery box, and the heat extraction pipe is connected to the control box through the connecting pipe, and the heat extraction pipe is fixedly installed on the inner wall of the heat recovery box through a fixing ring; the heat extraction pipe heats the heat inside the heat recovery box.
[0013] As a preferred technical solution of the utility model, the branch pipe is connected to the front of the inlet box through a swivel, and the inlet box is fixedly installed in front of the reheat box, and the number of inlet boxes is three; the reheat box is used to transfer heat.
[0014] As the preferred technical solution of the present invention, the temperature detector is connected to the equipment detector through the mounting rod, and the equipment detector is installed above the inside of the reheat box, and the bottom plate is fixedly installed on the top of the reheat box; the temperature detector can detect the heat inside the reheat box.
[0015] As a preferred technical solution of the utility model, the recovery main pipe is connected between the branch pipes, and the ratio between the inlet box and the temperature detector is 1:1; the recovery main pipe can uniformly collect the heat inside the kiln.
[0016] Compared with the prior art, the utility model provides a kiln head structure capable of recovering waste heat, which has the following beneficial effects:
[0017] 1. The utility model installs a partition plate inside the reheat box, which divides the reheat box into three equal parts to form a recovery compartment box. An inlet box is installed in front of the recovery compartment box. The inlet box is connected to a branch pipe through a swivel. A recovery main pipe is connected in front of the branch pipe. The recovery main pipe transmits the heat inside the kiln to the inside of the branch pipe. The branch pipe is controlled by a valve, so that the heat inside the reheat box can be separated and stored. At the same time, heat of different temperatures can be stored to avoid mixing heat of different temperatures to produce temperature fluctuations. The branch pipe can also absorb or discharge two or more types of heat. This design can save heat energy consumption in the later stage of the kiln. At the same time, heat of different temperatures can be stored separately to ensure stable heat storage.
[0018] 2. The utility model installs a heat extraction pipe at the rear of the reheat box, which is connected to the control box through a connecting pipe and is horizontally distributed at the rear of the reheat box. After the reheat box stores the heat, the heat extraction pipe can be used to uniformly heat the heat inside the reheat box, so that the heat inside the reheat box reaches a certain index, and the waste heat inside the reheat box can be prevented from being reduced, so that the waste heat can be recycled for secondary use. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the inlet box assembly of the utility model structure;
[0021] Figure 3 This is a schematic diagram of the heat recovery box assembly of the utility model structure;
[0022] Figure 4 This is a schematic diagram of the temperature detector assembly of the utility model structure;
[0023] Among them: 1. Heat recovery box; 11. Partition plate; 12. Heat extraction pipe; 13. Fixed ring; 14. Connecting pipe; 15. Control box; 2. Temperature detector; 21. Mounting rod; 22. Bottom plate; 23. Equipment detector; 3. Inlet box; 31. Branch pipe; 32. Swivel; 33. Valve; 34. Recovery compartment box; 4. Recovery main pipe. DETAILED DESCRIPTION
[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] See also Figure 1 — Figure 4 In this embodiment, a kiln head structure capable of recovering waste heat comprises: a heat recovery box 1, an equipment insulation mechanism is installed at the rear of the interior of the heat recovery box 1, a waste heat recovery pipeline mechanism is connected to the front of the heat recovery box 1, and the equipment insulation mechanism comprises: a heat extraction pipe 12 installed at the rear of the interior of the heat recovery box 1, a partition plate 11 is installed in front of the heat extraction pipe 12, and a fixing ring 13 is installed on the outside of the heat extraction pipe 12, and a connecting pipe 14 is connected to one end of the heat extraction pipe 12, and a control box 15 is installed at one end of the connecting pipe 14; the partition plate 11 divides the heat recovery box 1 into three parts at equal distances, and the heat extraction pipe 12 is horizontally connected to the rear of the interior of the heat recovery box 1, and the heat extraction pipe 12 is connected to the control box 15 through the connecting pipe 14, and the heat extraction pipe 12 is fixedly installed on the inner wall of the heat recovery box 1 through the fixing ring 13.
[0028] Specifically, the heat extraction pipe 12 is installed at the rear of the interior of the heat recovery box 1 through the fixing ring 13, and the heat extraction pipe 12 is connected to the control box 15 through the connecting pipe 14, so as to heat the heat extraction pipe 12, thereby uniformly heating the heat inside the heat recovery box 1, thereby preserving the heat inside the heat recovery box 1 and avoiding heat cooling.
[0029] A temperature detector 2 is installed on the top of the reheat box 1, a mounting rod 21 is fixedly installed below the temperature detector 2, a bottom plate 22 is installed in the middle and lower part of the mounting rod 21, and an equipment detector 23 is installed at the bottom of the mounting rod 21; the temperature detector 2 is connected to the equipment detector 23 through the mounting rod 21, and the equipment detector 23 is installed on the upper part of the interior of the reheat box 1, and the bottom plate 22 is fixedly installed on the top of the reheat box 1.
[0030] Specifically, the temperature detector 2 is installed above the reheat box 1 through the base plate 22, and the temperature detector 2 is connected to the equipment detector 23 through the mounting rod 21, and the equipment detector 23 is installed above the inside of the reheat box 1, so that the temperature inside the reheat box 1 can be monitored in real time.
[0031] The waste heat recovery pipeline mechanism includes: an inlet box 3 connected to the front wind of the heat recovery box 1, a branch pipe 31 is connected to the front of the inlet box 3, and a swivel 32 is connected between the branch pipe 31 and the inlet box 3, and a valve 33 is installed above the swivel 32, and a recovery partition box 34 is installed at the rear of the inlet box 3; the branch pipe 31 is connected to the front of the inlet box 3 through the swivel 32, and the inlet box 3 is fixedly installed in front of the heat recovery box 1, and the number of inlet boxes 3 is three.
[0032] The front of the branch pipe 31 is connected with the recovery main pipe 4; the recovery main pipe 4 is connected between the branch pipes 31, and the ratio between the inlet box 3 and the temperature detector 2 is 1:1.
[0033] Specifically, the inlet box 3 is installed in front of the recovery compartment box 34, and the inlet box 3 is connected to the branch pipe 31 through a swivel 32. The branch pipe 31 is controlled to transfer heat through the setting of the valve 33, so as to facilitate the individual control of the waste heat recovery of each recovery compartment box 34.
[0034] When in use, the heat generated by the kiln is transferred to the inside of the branch pipe 31 by using the setting of the recovery main pipe 4. The branch pipe 31 is opened or closed by the setting of the valve 33, so that it can be set to the separate recovery compartment 34. According to the temperature of the kiln, a valve 33 can be opened first to transfer the heat to the inside of a certain recovery compartment 34 through the branch pipe 31, or two or more valves 33 can be opened to make the recovery compartment 34 absorb the heat uniformly. Because the partition plate 11 is installed inside the heat recovery box 1, the partition plate 11 separates the heat recovery box 1 separately, so that the heat is separately installed, which is conducive to the separate preservation of heat at different temperatures. The heat inside the heat recovery box 1 is discharged separately to control the amount of heat discharge. After the heat is recovered, a heat extraction pipe 12 is installed at the rear of the inside of the heat recovery box 1. The heat extraction pipe 12 is connected to the control box 15 through a connecting pipe 14 to heat the heat extraction pipe 12 to preserve the heat inside the heat recovery box 1 and avoid heat cooling. According to the connection setting of the temperature detector 2 and the equipment detector 23, the temperature inside the heat recovery box 1 can be monitored in real time. Finally, when the kiln needs heat, the designated valve 33 is opened, or the valves 33 are opened at the same time to transmit the heat through the branch pipe 31 and the recovery main pipe 4 to recycle the heat.
[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A kiln head structure capable of recovering waste heat, comprising a heat recovery box (1), wherein an equipment heat preservation mechanism is installed at the rear of the heat recovery box (1), and a waste heat recovery pipeline mechanism is connected to the front of the heat recovery box (1), characterized in that: The equipment heat preservation mechanism comprises: a heat extraction pipe (12) installed at the rear of the heat recovery box (1), a partition plate (11) installed in front of the heat extraction pipe (12), a fixing ring (13) installed outside the heat extraction pipe (12), and one end of the heat extraction pipe (12) is connected to a connecting pipe (14), and one end of the connecting pipe (14) is installed with a control box (15); The waste heat recovery pipeline mechanism comprises: an inlet box (3) connected to the front wind of the heat recovery box (1), a branch pipe (31) is connected to the front of the inlet box (3), a swivel (32) is connected between the branch pipe (31) and the inlet box (3), and a valve (33) is installed above the swivel (32), and a recovery compartment box (34) is installed at the rear of the inlet box (3).
2. A kiln head structure capable of recovering waste heat according to claim 1, characterized in that: A temperature detector (2) is installed on the top of the reheat box (1), and a recovery main pipe (4) is connected in front of the branch pipe (31).
3. The kiln head structure capable of recovering waste heat according to claim 2, characterized in that: A mounting rod (21) is fixedly mounted below the temperature detector (2), a bottom plate (22) is mounted in the middle and lower part of the mounting rod (21), and an equipment detector (23) is mounted at the bottom of the mounting rod (21).
4. The kiln head structure capable of recovering waste heat according to claim 1, characterized in that: The partition plate (11) divides the heat recovery box (1) into three equal parts, and the heat extraction pipe (12) is transversely connected to the inner rear of the heat recovery box (1), and the heat extraction pipe (12) is connected to the control box (15) through the connecting pipe (14), and the heat extraction pipe (12) is fixedly installed on the inner wall of the heat recovery box (1) through a fixing ring (13).
5. The kiln head structure capable of recovering waste heat according to claim 3, characterized in that: The branch pipe (31) is connected to the front of the inlet box (3) via a swivel (32), and the inlet box (3) is fixedly installed in front of the reheat box (1), and the number of inlet boxes (3) is three.
6. The kiln head structure capable of recovering waste heat according to claim 3, characterized in that: The temperature detector (2) is connected to the equipment detector (23) via the mounting rod (21), and the equipment detector (23) is mounted above the interior of the reheat box (1), and the bottom plate (22) is fixedly mounted on the top of the reheat box (1).
7. The kiln head structure capable of recovering waste heat according to claim 2, characterized in that: The recovery main pipe (4) is connected between the branch pipes (31), and the ratio between the inlet box (3) and the temperature detector (2) is 1:1.