Preheating smoke exhaust structure of fluidized calcining furnace

Abstract

The utility model relates to the technical field of preheating smoke exhaust structures, in particular to a preheating smoke exhaust structure of a fluidized calcining furnace, which comprises a calcining furnace main body, a smoke exhaust pipeline and a base, the right side of the calcining furnace main body is communicated with the smoke exhaust pipeline, and the bottom of the calcining furnace main body is fixedly connected with the base for supporting the calcining furnace main body. The top of the calcining furnace body is communicated with a recovery pipeline, valves are arranged on one side of the recovery pipeline and one side of the smoke exhaust pipeline, the other end of the recovery pipeline is connected with a recovery box, a sliding rail with the middle sunken is embedded in the inner wall of the recovery box, a sliding strip is slidably connected to the sunken position of the sliding rail, and one side of the sliding strip is fixedly connected with a sliding plate. According to the energy-saving and environment-friendly calcining furnace disclosed by the utility model, heat generated in a preheating process can be reutilized through a preheating and smoke discharging structure arranged on the calcining furnace main body, so that resource waste is reduced, and impurities in the heat can be filtered at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of preheating smoke exhaust structures, in particular to a preheating smoke exhaust structure of a fluidized calcining furnace. Background Art

[0002] A calcining furnace is a high-temperature equipment mainly used for calcining and processing materials. It is a process of changing the physical or chemical properties of raw materials or semi-finished products by heat treating them at high temperatures. Before calcining gypsum, the calcining furnace needs to preheat the gypsum in order to remove moisture from the gypsum and improve the calcination efficiency of the gypsum.

[0003] The temperature during preheating is generally around 120 degrees. Gypsum will also produce smoke during preheating. During preheating, the smoke generated by the common calcining furnace on the market is discharged from the smoke exhaust duct. Since heat is also generated during preheating, this heat is usually not connected to the waste heat recovery device, resulting in a waste of resources. Therefore, a preheating smoke exhaust structure for a fluidized calcining furnace is proposed to address the above problems. Summary of the invention

[0004] The utility model aims to provide a preheating smoke exhaust structure of a fluidized calcining furnace to solve the problem that the heat generated during preheating is not recovered and causes waste of resources.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The smoke exhaust pipe is connected with the smoke exhaust gas pipe on the right side of the smoke exhaust pipe, and the bottom of the smoke exhaust pipe is fixedly connected with the base for supporting the smoke exhaust pipe. The top of the smoke exhaust pipe is connected with the smoke exhaust pipe, and valves are provided on the recovery pipe and one side of the smoke exhaust pipe. The other end of the recovery pipe is connected with a recovery box. The inner wall of the recovery box is embedded with a slide rail with a concave arrangement in the middle, and a slide bar is slidably connected to the concave part of the slide rail, one side of the slide bar is fixedly connected to a sliding plate, and a cover plate is fixedly connected to the left side of the sliding plate, and magnetic strips are provided in the cover plate and the recovery box, a groove is provided in the sliding plate, and a filter layer is tightly fitted in the groove provided in the sliding plate, a through hole is provided at the bottom of the sliding plate, and a plurality of heat conducting rods are fitted at the bottom of the sliding plate, and a fixing plate is fixedly connected to the outer side of the heat conducting rod, and an insulation pipe is connected to one side of the recovery box.

[0007] Preferably, the right side of the cover plate fits tightly with the left side of the recycling box, and a handle is fixedly connected to the right side of the cover plate.

[0008] Preferably, the filter layer consists of two parts: a filter frame and a filter, and the other end of the insulation pipe is connected to the calcining furnace body.

[0009] Preferably, the heat-conducting rod is arranged directly below the through hole opened at the bottom of the sliding plate, and the fixing plate and the recovery box are fixedly connected.

[0010] Preferably, the heat-conducting rod is divided into a horizontal arrangement and a vertical arrangement, the bottom of the vertically arranged heat-conducting rod is connected to a horizontally arranged heat-conducting rod, and one end of the horizontally arranged heat-conducting rod is connected to the insulation pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, through the calcining furnace main body, smoke exhaust pipe, base, recovery pipe and valve, when the calcining furnace main body preheats the gypsum, the calcining furnace main body is started, the valve of the smoke exhaust pipe is closed, and the valve of the recovery pipe is opened. At this time, the heat generated in the preheating process is mixed with the flue gas containing impurities and flows to the recovery pipe. Through the recovery box, sliding plate, groove and filter layer, the heat and flue gas flow from the recovery pipe to the recovery box and fall to the filter plate for filtering. Through the through holes, heat conduction rod, insulation pipe and fixed plate, the heat of impurities is filtered out and flows from the through holes of the sliding plate to the heat conduction rod, so that it can quickly flow to the insulation pipe until it flows into the calcining furnace main body, effectively reusing the heat generated in the preheating process and reducing the waste of resources. The fixed plate effectively fixes the heat conduction rod as a whole. Through the cover plate, magnetic strip, slide rail, slide bar and handle, when the filter layer needs to be filtered after long-term use, the user holds the handle to move the cover plate and the sliding plate to the right as a whole until they are taken out, and then replaces the filter layer as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 This is a schematic diagram of the side view structure of the recycling box of the utility model;

[0016] Figure 4 It is a schematic diagram of the overall structure of the heat conducting rod of the utility model.

[0017] In the figure: 1. calcining furnace body; 2. smoke exhaust pipe; 3. base; 4. recovery pipe; 5. valve; 6. recovery box; 7. sliding plate; 8. cover plate; 9. magnetic strip; 10. groove; 11. through hole; 12. filter layer; 13. heat conduction rod; 14. slide rail; 15. slide bar; 16. insulation pipe; 17. handle; 18. fixing plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] A preheating smoke exhaust structure of a fluidized calcining furnace comprises a calcining furnace body 1, a smoke exhaust pipe 2 and a base 3. The right side of the calcining furnace body 1 is connected with the smoke exhaust pipe 2. The bottom of the calcining furnace body 1 is fixedly connected with the base 3 for supporting the calcining furnace body 1. The top of the calcining furnace body 1 is connected with a recovery pipe 4. The recovery pipe 4 and one side of the smoke exhaust pipe 2 are both provided with valves 5. The other end of the recovery pipe 4 is connected with a recovery box 6. The inner wall of the recovery box 6 is embedded with a slide rail 14 with a concave setting in the middle. The concave part of the slide rail 14 is slidably connected with a slide bar 15. One side of the slide bar 15 is fixedly connected with a slide plate 7. The slide plate A cover plate 8 is fixedly connected to the left side of 7, and magnetic strips 9 are provided in the cover plate 8 and the recovery box 6. A groove 10 is provided in the sliding plate 7, and a filter layer 12 is tightly fitted in the groove 10 provided in the sliding plate 7. A through hole 11 is provided at the bottom of the sliding plate 7, and a plurality of heat-conducting rods 13 are fitted at the bottom of the sliding plate 7. A fixed plate 18 is fixedly connected to the outside of the heat-conducting rods 13. A heat-insulating pipe 16 is connected to one side of the recovery box 6. By setting the preheating smoke exhaust structure for the calcining furnace body 1, the heat generated in the preheating process can be reused to reduce resource waste, and at the same time, impurities in the heat can be filtered.

[0023] The right side of the cover plate 8 fits tightly with the left side of the recovery box 6, and a handle 17 is fixedly connected to the right side of the cover plate 8, which is convenient for the user to pull and draw the cover plate 8; the filter layer 12 is composed of a filter frame and a filter, and the other end of the insulation pipe 16 is connected to the calcining furnace body 1, which is convenient for the filtered heat to return to the calcining furnace body 1; the heat-conducting rod 13 is arranged directly below the through hole 11 opened at the bottom of the sliding plate 7, and the fixed plate 18 is fixedly connected to the recovery box 6, which is convenient for the fixation of the heat-conducting rod 13; the heat-conducting rod 13 is divided into a horizontal setting and a vertical setting. The bottom of the vertically arranged heat-conducting rod 13 is connected to the horizontally arranged heat-conducting rod 13, and one end of the horizontally arranged heat-conducting rod 13 is connected to the insulation pipe 16, which is convenient for heat to reach the insulation pipe 16 faster.

[0024] Working process: When the preheating and smoke exhaust structure of the fluidized bed calcining furnace is in use, firstly, the calcining furnace body 1 is placed in a suitable position, and the gypsum to be calcined is placed in the calcining furnace body 1 for preheating, and the valve 5 of the smoke exhaust pipe 2 is closed, and the valve 5 of the recovery pipe 4 is opened, and the calcining furnace body 1 is started. The flue gas and heat generated during the preheating of the gypsum pass through the recovery pipe 4 and flow into the recovery box 6. The impurities contained in the flue gas and heat can be filtered through the filter layer 12 composed of a filter frame and a filter mesh arranged in the recovery box 6. The filtered heat passes through a plurality of heat-conducting rods 13 arranged horizontally and vertically at the bottom of the sliding plate 7. Since the heat-conducting rods 13 are all connected, the heat in the vertically arranged heat-conducting rods 13 quickly flows to the horizontally arranged heat-conducting rods 13 until it flows into the insulation pipe 16 and passes through the insulation pipe 16. Flowing into the calcining furnace body 1, when the filter layer 12 needs to be replaced after long-term use, the user holds the handle 17 to move the cover plate 8 to the left, driving the sliding plate 7 to move to the left as a whole. At this time, the slide bars 15 arranged on the front and rear sides of the sliding plate 7 slide in the slide rails 14 until the sliding plate 7 is taken out, and the filter layer 12 is taken out from the groove 10 in the sliding plate 7 as a whole, and a new filter layer 12 is placed in the groove 10, and then the slide bar 15 on one side of the sliding plate 7 is inserted into the slide rail 14 embedded in the recovery box 6, and the sliding plate 7 is moved to the right as a whole, straight through the magnetic strips 9 arranged in the cover plate 8 and the recovery box 6, until the right side of the cover plate 8 and the left side of the recovery box 6 are tightly fitted, and the heat generated during the preheating process can be reused through the preheating smoke exhaust structure set for the calcining furnace body 1, reducing resource waste, and at the same time, impurities in the heat can be filtered.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0026] 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 preheating smoke exhaust structure of a fluidized calcining furnace, comprising a calcining furnace body (1), a smoke exhaust pipe (2) and a base (3), characterized in that: The right side of the calcining furnace body (1) is connected to a smoke exhaust pipe (2); the bottom of the calcining furnace body (1) is fixedly connected to a base (3) for supporting the calcining furnace body (1); the top of the calcining furnace body (1) is connected to a recovery pipe (4); one side of the recovery pipe (4) and the smoke exhaust pipe (2) are both provided with valves (5); the other end of the recovery pipe (4) is connected to a recovery box (6); the inner wall of the recovery box (6) is embedded with a slide rail (14) with a concave middle; the concave part of the slide rail (14) is slidably connected to a slide bar (15); one side of the slide bar (15) is connected to the slide The sliding plate (7) is fixedly connected, a cover plate (8) is fixedly connected to the left side of the sliding plate (7), a magnetic strip (9) is provided in the cover plate (8) and the recycling box (6), a groove (10) is provided in the sliding plate (7), a filter layer (12) is tightly fitted in the groove (10) provided in the sliding plate (7), a through hole (11) is provided at the bottom of the sliding plate (7), a plurality of heat-conducting rods (13) are fitted at the bottom of the sliding plate (7), a fixed plate (18) is fixedly connected to the outside of the heat-conducting rods (13), and a heat-insulating pipe (16) is connected to one side of the recycling box (6).

2. The preheating smoke exhaust structure of a fluidized calcining furnace according to claim 1, characterized in that: The right side of the cover plate (8) is tightly fitted with the left side of the recovery box (6), and a handle (17) is fixedly connected to the right side of the cover plate (8).

3. The preheating smoke exhaust structure of a fluidized calcining furnace according to claim 1, characterized in that: The filter layer (12) is composed of a filter frame and a filter, and the other end of the heat-insulating pipe (16) is connected to the calcining furnace body (1).

4. The preheating smoke exhaust structure of a fluidized calcining furnace according to claim 1, characterized in that: The heat-conducting rod (13) is arranged directly below a through hole (11) opened at the bottom of the sliding plate (7), and the fixing plate (18) and the recovery box (6) are fixedly connected.

5. The preheating smoke exhaust structure of a fluidized calcining furnace according to claim 1, characterized in that: The heat conducting rod (13) is divided into a horizontal arrangement and a vertical arrangement. The bottom of the vertically arranged heat conducting rod (13) is connected to a horizontally arranged heat conducting rod (13), and one end of the horizontally arranged heat conducting rod (13) is connected to a heat insulation pipe (16).

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