Combustion control device for double-hearth kiln

Abstract

The utility model relates to the technical field of double-chamber kiln combustion, in particular to a double-chamber kiln combustion control device, which comprises an air volume adjusting assembly, a combustion control assembly and a combustion control assembly, and the air volume adjusting assembly comprises an air pipe which is fixed on an external double-chamber kiln body and is close to a coal injection nozzle; the first connecting pipe is fixed at one end of the air pipe; the heating assembly comprises a second connecting pipe which is fixed at the other end, far away from the air pipe, of the first connecting pipe; the thermal resistor penetrates through and is fixed on the inner side wall of the second connecting pipe; the baffle is fixed on the inner side wall of the second connecting pipe and located on the side edge of the thermal resistor; the insulating base is fixed at one end of the thermal resistor and is positioned on the outer side of the second connecting pipe; and the power line is fixed on the insulating base. The problems that in some environments with high humidity, water and metal on the surface of the air door are subjected to a chemical reaction, rust and other corrosion products are formed, attractiveness is affected, and the reduction of the sealing performance and the damage to mechanical parts can be further aggravated are solved.

Description

Technical Field

[0001] This utility model relates to the field of double-chamber kiln combustion technology, and in particular to a double-chamber kiln combustion control device. Background Technology

[0002] A double-hearth kiln combustion control device is a piece of equipment or system used to control the combustion process in a double-hearth kiln (such as a double-hearth lime kiln). It mainly includes temperature control, fuel supply control, ventilation control, and safety functions. It precisely controls the amount of air entering the kiln, ensuring thorough mixing of fuel and air, improving combustion efficiency, maintaining a suitable pressure environment within the kiln, and guaranteeing stable combustion.

[0003] The existing air volume control uses a hydraulic system to rotate the dampers inside the air duct to adjust the air volume and control the amount of air entering the furnace in order to maintain a stable temperature and atmosphere inside the furnace.

[0004] However, in environments with slightly higher humidity, moisture reacts chemically with the metal on the surface of the damper, forming corrosion products such as rust. This not only affects the appearance but also further exacerbates the decline in sealing performance and damage to mechanical parts. Utility Model Content

[0005] The purpose of this invention is to provide a combustion control device for a double-chamber kiln to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this utility model is:

[0007] A dual-chamber kiln combustion control device, comprising:

[0008] Airflow regulating component, the airflow regulating component comprising:

[0009] The air duct is fixed to the external double-chamber kiln body and close to the pulverized coal nozzle;

[0010] The first connecting pipe is fixed at one end of the air duct;

[0011] Heating assembly, the heating assembly comprising:

[0012] The second connecting pipe is fixed at the other end of the first connecting pipe away from the air duct.

[0013] A thermal resistor is inserted through and fixed to the inner wall of the second connecting pipe;

[0014] The baffle is fixed to the inner wall of the second connecting pipe and is located on the side of the thermal resistor.

[0015] Optionally, the heating assembly further includes:

[0016] An insulating base is fixed to one end of the thermal resistor and located outside the second connecting pipe;

[0017] A power cord, which is fixed to an insulating base.

[0018] Optionally, the heating assembly further includes:

[0019] Mounting plate, which is fixed to the middle of one end of the arc-shaped surface of the baffle;

[0020] A bolt, one end of which is fixed to the middle of the mounting plate, and the other end of which passes through and is fixed to the second connecting pipe.

[0021] Optionally, there are two sets of thermal resistors, which are fixed sequentially inside the second connecting tube and are staggered vertically.

[0022] Optionally, there are two sets of baffles, which are fixed in sequence inside the second connecting pipe and are staggered vertically, and are located sequentially on the side of the thermal resistor.

[0023] Optionally, the airflow regulating component further includes:

[0024] The rotating rod is rotatably connected to the inside of the air duct.

[0025] The damper is fixed to the side of the rotating rod;

[0026] The hydraulic rod is rotatably connected at one end to one end of a rotating rod, and at the other end to an external support base.

[0027] Optionally, it may also include a guide component, the guide component comprising:

[0028] A support plate is fixed inside the duct at one end near the first connecting pipe;

[0029] The guide plate is fixed to the lower end of the support plate;

[0030] The exhaust pipe is fixed to the lower end of the air duct and is located at the lower end of the guide plate;

[0031] The sealing cap is screwed onto the lower end of the exhaust pipe.

[0032] Optionally, the guiding component further includes:

[0033] A desiccant is filled inside the exhaust pipe.

[0034] Compared with the prior art, the beneficial effects of this utility model are:

[0035] By installing a heating component, a second connecting pipe is installed at the first connecting pipe of the air inlet of the duct. Two sets of thermal resistors and baffles are installed sequentially in the second connecting pipe. When the power cord is turned on, air enters through the second connecting pipe, passes through the first thermal resistor, and is blocked by the first baffle, whereby the humid air is heated. Then it reaches the second thermal resistor, is blocked by the second baffle, and is heated again. The air temperature rises and the relative humidity decreases, which lowers the temperature of the air entering the duct and damper, thus solving the problem in the prior art. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a first-person view diagram of the overall structure of this application;

[0038] Figure 2 This is a second-view schematic diagram of the overall structure of this application;

[0039] Figure 3 This is a schematic diagram of the interior of the duct and the second connecting pipe in this application;

[0040] Figure 4 This is a schematic diagram of the baffle structure of this application.

[0041] Figure label:

[0042] 1. Air volume regulating component; 11. Air duct; 12. First connecting pipe; 13. Rotary rod; 14. Air damper; 15. Hydraulic rod;

[0043] 2. Heating assembly; 21. Second connecting pipe; 22. Resistance temperature detector (RTD); 23. Insulating base; 24. Power cord; 25. Baffle; 26. Mounting plate; 27. Bolts;

[0044] 3. Guide assembly; 31. Support plate; 32. Guide plate; 33. Exhaust pipe; 34. Desiccant; 35. Sealing cap. Detailed Implementation

[0045] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] Given that in current technologies, in environments with slightly higher humidity, moisture reacts chemically with the metal surface of the damper to form corrosion products such as rust, which not only affects the appearance but also further exacerbates the decline in sealing performance and damage to mechanical components.

[0048] Please see Figure 1-4 As shown, this embodiment is a dual-chamber kiln combustion control device, comprising:

[0049] Air volume regulating component 1, which includes:

[0050] Air duct 11 is fixed to the external double-chamber kiln body and is located near the pulverized coal nozzle;

[0051] The first connecting pipe 12 is fixed at one end of the air duct 11;

[0052] The air volume regulating component 1 also includes:

[0053] Rotary rod 13 is rotatably connected to the inside of air duct 11;

[0054] The damper 14 is fixed to the side of the rotating rod 13;

[0055] The hydraulic rod 15 is rotatably connected at one end to one end of the rotating rod 13, and at the other end to the external support base.

[0056] The air volume regulating component 1 is used to regulate the amount of air entering the double-chamber kiln. The air duct 11 provides an air flow channel. The first connecting pipe 12 serves as a connection and is used to connect to an external fan. The rotating rod 13 is used to rotate the damper 14, which is used to control the air intake. The hydraulic rod 15 provides a power source and is used to adjust the rotation of the rotating rod 13.

[0057] Heating component 2, heating component 2 includes:

[0058] The second connecting pipe 21 is fixed at the other end of the first connecting pipe 12 away from the air duct 11;

[0059] The thermal resistor 22 penetrates and is fixed to the inner wall of the second connecting pipe 21;

[0060] Baffle 25 is fixed to the inner wall of the second connecting pipe 21 and is located on the side of the thermal resistor 22.

[0061] Heating component 2 also includes:

[0062] Insulating base 23 is fixed to one end of the thermal resistor 22 and is located outside the second connecting tube 21;

[0063] Power cord 24, which is fixed to the insulating base 23;

[0064] Heating component 2 also includes:

[0065] Mounting plate 26, which is fixed to the middle of one end of the arc-shaped surface of baffle 25;

[0066] Bolt 27, one end of bolt 27 is fixed to the middle of mounting plate 26, and the other end passes through and is fixed to the second connecting pipe 21;

[0067] There are two sets of thermal resistors 22, which are fixed in sequence inside the second connecting tube 21 and are distributed alternately in the upper and lower parts.

[0068] There are two sets of baffles 25, which are fixed in the second connecting pipe 21 in sequence and are staggered in the upper and lower parts, and are located on the side of the thermal resistor 22 in sequence.

[0069] Heating component 2 is used to heat air. Second connecting pipe 21 provides support. After power cord 24 is connected, thermal resistor 22 can be heated. Insulating base 23 provides support. Baffle 25 blocks and slows down air flow. Mounting plate 26 and bolts 27 are used for fixing and connecting.

[0070] Working principle:

[0071] A second connecting pipe 21 is installed at the first connecting pipe 12 of the air inlet of the duct 11. Two sets of thermal resistors 22 are placed in the second connecting pipe 21. An insulating base 23 is fixed to the outside of the second connecting pipe 21. The bolt 27 at one end of the mounting plate 26 passes through the second connecting pipe 21 and is tightened. The two baffles 25 are fixed. The power cord 24 is connected. Air enters from the second connecting pipe 21, passes through the first thermal resistor 22, and is blocked by the first baffle 25. The humid air is heated. Then it reaches the second thermal resistor 22 and is blocked by the second baffle 25. The humid air is heated again. The air temperature rises and the relative temperature drops, which lowers the temperature of the air entering the duct 11 and the damper 14.

[0072] This step lowers the temperature of the air entering the duct 11 and damper 14, thus slowing down the corrosion rate of damper 14.

[0073] Please see Figure 3 This embodiment, based on the above embodiments, further includes:

[0074] Guide component 3, guide component 3 includes:

[0075] The support plate 31 is fixed to the inner side of the air duct 11 near the end of the first connecting pipe 12;

[0076] Guide plate 32 is fixed to the lower end of support plate 31;

[0077] The exhaust pipe 33 is fixed to the lower end of the air duct 11 and is located at the lower end of the guide plate 32;

[0078] The sealing cap 35 is screwed onto the lower end of the exhaust pipe 33;

[0079] Guide component 3 also includes:

[0080] Desiccant 34 is filled inside the exhaust pipe 33;

[0081] The guide assembly 3 serves a guiding function, the support plate 31 supports the guide plate 32, the guide plate 32 serves a guiding function, the desiccant 34 is used to absorb moisture, the dehumidification pipe 33 is used to place the desiccant 34 and facilitate dehumidification, and the sealing cap 35 serves a sealing function.

[0082] Working principle:

[0083] Heated air enters the duct 11 and flows along one side of the guide plate 32 to the damper 14. Some moisture will remain, which will be absorbed by the desiccant 34 when it passes through the exhaust pipe 33. After a period of use, the desiccant 34 can be replaced by opening the sealing cover 35.

[0084] This step further removes moisture from the air.

[0085] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dual hearth kiln combustion control apparatus, characterized by comprising: The utility model relates to a kind of external double-bore kiln, which comprises: Air volume regulating assembly, the air volume regulating assembly includes: Air pipe, fixed on the outer double-bore kiln body, and close to coal injection nozzle; First connecting pipe, fixed at one end of air pipe; Heating assembly, the heating assembly includes: Second connecting pipe, fixed at the other end of first connecting pipe away from air pipe; Thermistor, passes through and is fixed in the inner wall of second connecting pipe; Baffle, fixed in the inner wall of second connecting pipe, and located at the side of thermistor.

2. A dual chamber kiln combustion control apparatus according to claim 1 wherein, The heating assembly further includes: Insulating base, fixed at one end of thermistor, and located outside second connecting pipe; Power line, fixed on insulating base.

3. A dual chamber kiln combustion control apparatus according to claim 1 wherein, The heating assembly further includes: Mounting plate, fixed at the middle of one end of baffle arc surface; Bolt, one end fixed in the middle of mounting plate, and the other end passes through and is fixed on second connecting pipe.

4. A dual chamber kiln combustion control apparatus according to claim 1, wherein The thermistor has two groups, which are fixed in second connecting pipe in turn, and staggered distribution up and down.

5. A dual chamber kiln combustion control apparatus according to claim 1 wherein, The baffle has two groups, which are fixed in second connecting pipe in turn, and staggered distribution up and down, while located at the side of thermistor in turn.

6. A dual chamber kiln combustion control apparatus according to claim 1 wherein, The air volume regulating assembly further includes: Rotary rod, rotationally connected in the inner side of air pipe; Air door, fixed at the side of rotary rod; Hydraulic rod, one end rotationally connected at one end of rotary rod, the other end rotationally connected on outer support seat.

7. A dual chamber kiln combustion control apparatus according to claim 1 wherein, It further includes guiding assembly, the guiding assembly includes: Supporting plate, fixed at one end of air pipe close to first connecting pipe; Guide plate, fixed at lower end of supporting plate; Dampproofing pipe, fixed at lower end of air pipe, and located at lower end of guide plate; Plugging cover, screwed at lower end of dampproofing pipe.

8. A dual chamber kiln combustion control apparatus according to claim 7, wherein, The guiding assembly further includes: Desiccant, filled in dampproofing pipe.

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