High-temperature-resistant industrial kiln denitration equipment

Abstract

The high-temperature-resistant industrial kiln denitration equipment comprises a supporting frame, a denitration main body and an air inlet groove, the upper end of the denitration main body is fixedly communicated with a connecting groove, the lower side end of the air inlet groove is fixedly communicated with an air inlet, and the front side of the lower end of the air inlet groove is fixedly communicated with a cold air opening. A supporting frame is fixedly mounted on the inner wall of the middle of the air inlet groove, a circulating opening is formed in the upper end and the lower end of the supporting frame in a penetrating mode, mounting sliding grooves are fixedly formed in the two sides of the inner wall of the supporting frame, and filter elements used for filtering waste gas in the air inlet groove are in interference connection with the inner walls of the mounting sliding grooves; a maintenance door is hinged to the outer side wall of the front end of the air inlet groove in a penetrating mode, an exhaust port fixedly communicates with the outer side of the lower end of the denitration body, an exhaust fan is fixedly installed in the exhaust port in a supported mode, and a connecting pipe is fixedly installed on the front side of the upper end of the denitration body in a supported mode. According to the utility model, the high-temperature waste gas is denitrated, and meanwhile, the mixing efficiency of a denitration agent and the waste gas is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial kiln denitration technical field, concretely is a kind of high-temperature-resistant industrial kiln denitration equipment. BACKGROUND

[0002] Industrial kiln refers to the heat generated by converting fuel combustion or electric energy in industrial production, and the heat is used to melt, melt, bake (calcine), heat, dry distillation, gasification and other heat engineering equipment of workpiece. The main functions of industrial kiln include:

[0003] Complete temperature curve requirement: industrial kiln can provide specific temperature curve according to the process requirement of product, so that product achieves the expected firing effect. Atmosphere control: by adjusting the atmosphere (such as oxygen content, nitrogen content, etc.) in kiln, the firing quality and performance of product can be controlled. Pressure control: part of industrial kiln also needs to control the pressure in kiln to meet the firing needs of specific product. Widely used in industrial production: industrial kiln is widely used in steel, coking, non-ferrous, building materials, petrochemical, chemical, machinery manufacturing and other industries, and plays an important supporting role in industrial development.

[0004] Because industrial kiln is one of the main emission sources of air pollution in industrial field, so implementing industrial kiln upgrading and deep treatment has important significance for improving air quality and promoting high-quality development of manufacturing industry. In summary, industrial kiln is an indispensable heat engineering equipment in industrial production, has multiple functions, and also bears important responsibility in environmental protection field.

[0005] But the prior art in actual use, traditional denitration equipment in the face of industrial kiln high temperature working condition, exposed many problems, many equipment key components cannot withstand the high temperature of kiln exhaust gas, prone to deformation, damage and other conditions, lead to the service life of equipment is greatly shortened, maintenance cost increases sharply;Moreover, high temperature environment will affect the activity and reaction efficiency of denitration agent, so that the denitration effect is difficult to achieve ideal state. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of high-temperature-resistant industrial kiln denitration equipment to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: including support frame, denitration main part and air inlet slot, the denitration main part upper end fixed communication has the connecting groove, the air inlet slot downside fixed communication has the air inlet, the air inlet slot lower end front side fixed communication has the cold air outlet, the air inlet slot middle part inner wall fixed mounting has the support frame, the support frame upper and lower end penetrates and set up and has the flow passageway, the support frame inner wall both sides fixed mounting has the installation sliding slot, the installation sliding slot inner wall excess connection has the filter filter core for carrying out the filtration to the air inlet slot inside exhaust gas, the air inlet slot front end outside wall penetrates and has the maintenance door of hinge connection,

[0008] The denitration main part lower end outside fixed communication has the exhaust port, the exhaust port inside support fixed mounting has the exhaust fan, the denitration main part upper end front side support fixed mounting has the connecting pipe, the connecting pipe inside rotation communication has the rotating pipe through the rotary joint, the rotating pipe outer end fixed communication has the atomizing nozzle, the rotating pipe front end outer curved surface fixed mounting has the transmission gear, the denitration main part upper end front side fixed mounting has the drive motor, the drive motor inside transmission shaft portion fixed mounting has the first synchronous wheel, the first synchronous wheel outer end is connected with the second synchronous wheel through the synchronous belt transmission.

[0009] Preferably, the support frame, denitration main part and air inlet slot are made of high-temperature-resistant material, the denitration main part is fixedly installed on the upper end of the support frame, and the connecting groove is fixedly communicated with the upper end of the air inlet slot away from the side end of the denitration main part.

[0010] Preferably, the air inlet is communicated with the exhaust pipe of the external industrial kiln, and the temperature sensor for monitoring the temperature inside the air inlet slot is fixedly installed at the lower end of the air inlet slot.

[0011] Preferably, the cold air outlet is communicated with the external cold air pipeline, and the on-off valve is fixedly installed at the front end of the cold air outlet.

[0012] Preferably, the number of installation sliding slots is several, which are symmetrically distributed on both sides of the inner wall of the support frame, and the filter filter core is made of high-temperature-resistant material.

[0013] Preferably, the denitration main part is fixedly communicated with the impurity discharge pipe, the on-off valve is fixedly installed at the lower end of the impurity discharge pipe, the side end opening of the connecting pipe is communicated with the denitration agent pipeline outside, and the rotating pipe is rotatably connected to the inner wall of the upper end of the denitration main body through the rotating shaft.

[0014] Preferably, the number of atomizing nozzles is several, which are staggered and symmetrically distributed at the outer end of the rotating pipe, the transmission gears are meshed with each other, and the second synchronous wheel is fixedly installed on the outer curved surface of the front end of the rotating pipe.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The temperature sensor installed at the lower end of the air inlet groove can monitor the temperature of the waste gas entering the air inlet groove, when the temperature of the waste gas is too high, the cold air inside the external cold air pipeline is discharged into the air inlet groove by controlling the opening of the cold air outlet, so that the purpose of reducing the temperature of the waste gas is achieved, and the equipment always operates in a safe temperature range; meanwhile, the waste gas passing through the air inlet groove is filtered by the filter element, so that the dust particles in the waste gas are effectively removed, and the influence of dust on the subsequent denitration reaction is prevented; when the waste gas is discharged into the denitration main body, the denitrating agent in the external denitrating agent pipeline is discharged into the rotating pipe through the connecting pipe; when the denitrating agent is discharged into the rotating pipe, the denitrating agent is sprayed into the upper end of the denitration main body through the atomizing nozzle, so that the nitrate reacts with nitrogen oxides in the waste gas, and the nitrogen oxides are reduced to nitrogen and water, thereby realizing the effect of denitration of high-temperature waste gas.

[0017] The utility model discloses still through control opening drive motor, when drive motor opens, will drive rotating pipe to rotate in proper order, when rotating pipe rotates, will drive transmission gear to rotate, when transmission gear rotates, will engage drive rotating pipe to rotate relatively, when rotating pipe rotates relatively, will drive atomizing nozzle to swing relatively synchronously, when atomizing nozzle swings relatively, will further improve the spraying area of atomizing nozzle, thereby realize the denitration of high-temperature waste gas, further improve the mixing efficiency of denitrating agent and waste gas. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structure schematic diagram of the high-temperature-resistant industrial kiln denitration equipment of the utility model Figure 1 ;

[0019] Figure 2 It is an overall structure schematic diagram of the high-temperature-resistant industrial kiln denitration equipment of the utility model Figure 2 ;

[0020] Figure 3 It is a cross-sectional view of the high-temperature-resistant industrial kiln denitration equipment of the utility model.

[0021] In the drawing: 1, support frame; 2, denitration main body; 3, air inlet groove; 4, connecting groove; 5, air inlet; 6, cold air outlet; 7, support frame; 8, flow-through port; 9, installation sliding groove; 10, filter element; 11, maintenance door; 12, exhaust port; 13, exhaust fan; 14, impurity discharge pipe; 15, connecting pipe; 16, rotating pipe; 17, atomizing nozzle; 18, transmission gear; 19, drive motor; 20, first synchronous wheel; 21, second synchronous wheel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figures 1-3 The utility model provides a kind of high-temperature-resistant industrial kiln denitrification equipment technical scheme: including support frame 1, denitration main body 2 and air inlet groove 3, and support frame 1, denitration main body 2 and air inlet groove 3 are made of high-temperature-resistant material respectively, denitration main body 2 is fixedly installed and arranged on the upper end of support frame 1, there is connecting groove 4 in fixed communication on the upper end of denitration main body 2, and connecting groove 4 is fixedly communicated on the upper end of air inlet groove 3 away from the side end of denitration main body 2, so that denitration main body 2 is communicated with air inlet groove 3 by connecting groove 4;

[0024] Air inlet 5 is fixedly communicated in the lower side end of air inlet groove 3, and air inlet 5 is communicated with external industrial kiln exhaust duct, so that the waste gas generated by external industrial kiln is discharged into the inside of air inlet groove 3 through air inlet 5, temperature sensor for monitoring the temperature in the inside of air inlet groove 3 is fixedly installed in the lower end of air inlet groove 3, cold air inlet 6 is fixedly communicated in the front side of the lower end of air inlet groove 3, and cold air inlet 6 is communicated with external cold air duct, and on-off valve is fixedly installed in the front end of cold air inlet 6, support frame 7 is fixedly installed on the inner wall of the middle of air inlet groove 3, and flow-through opening 8 is penetrated and arranged in the upper and lower ends of support frame 7, and mounting sliding groove 9 is fixedly installed on the two sides of the inner wall of support frame 7, and the number of mounting sliding groove 9 is several, and is symmetrically distributed on the two sides of the inner wall of support frame 7, and filter element 10 for filtering the waste gas in the inside of air inlet groove 3 is connected with the inner wall of mounting sliding groove 9 by interference, and filter element 10 is made of high-temperature-resistant material, and maintenance door 11 is hingedly connected in the penetration of the outer side wall of the front end of air inlet groove 3;

[0025] Exhaust port 12 is fixedly communicated in the outer side of the lower end of denitration main body 2, and exhaust fan 13 is fixedly installed and supported in the inside of exhaust port 12, and exhaust pipe 14 is fixedly communicated in the bottom of denitration main body 2, and on-off valve is fixedly installed in the lower end of exhaust pipe 14, and connecting pipe 15 is fixedly installed and supported in the front side of the upper end of denitration main body 2, and connecting pipe 15 is communicated with external denitrification agent duct in the opening of side end, and rotating pipe 16 is rotatably communicated in the inside of connecting pipe 15 by rotating joint, and rotating pipe 16 is rotatably connected on the inner wall of the upper end of denitration main body 2 by rotating shaft,

[0026] The outer end of the rotating pipe 16 is fixedly connected with atomizing nozzles 17, and the number of the atomizing nozzles 17 is several, which are distributed in a staggered and symmetrical manner at the outer end of the rotating pipe 16, respectively; the outer curved surface of the front end of the rotating pipe 16 is fixedly installed with transmission gears 18, and the transmission gears 18 are connected with each other in a meshing manner; the front side of the upper end of the denitration main body 2 is fixedly installed with a driving motor 19; the inner side of the transmission shaft part of the driving motor 19 is fixedly installed with a first synchronous wheel 20; the outer end of the first synchronous wheel 20 is connected with a second synchronous wheel 21 through a synchronous belt transmission, and the second synchronous wheel 21 is fixedly installed on the outer curved surface of the front end of the rotating pipe 16.

[0027] Working principle: in use, the air inlet 5 of the utility model will exhaust gas generated by the external industrial kiln into the air inlet groove 3, when the exhaust gas generated by the external industrial kiln is exhausted into the air inlet groove 3, the exhaust fan 13 is controlled to be opened, when the exhaust fan 13 is opened, negative pressure will be generated in the denitration main body 2, when the negative pressure is generated in the denitration main body 2, the exhaust gas exhausted into the air inlet groove 3 will be sucked into the denitration main body 2 through the connecting groove 4, when the exhaust gas is sucked into the denitration main body 2, the temperature sensor installed at the lower end of the air inlet groove 3 will monitor the temperature of the exhaust gas entering the air inlet groove 3, when the temperature of the exhaust gas is too high, the cold air inlet 6 is controlled to be opened, when the cold air inlet 6 is opened, the cold air in the external cold air pipeline will be exhausted into the air inlet groove 3, so as to reduce the temperature of the exhaust gas, ensure that the equipment always operates in a safe temperature range, and filter the exhaust gas passing through the air inlet groove 3 through the filter element 10, effectively remove the dust particles in the exhaust gas, and prevent the dust from affecting the subsequent denitration reaction, when the exhaust gas is exhausted into the denitration main body 2, the denitration agent in the external denitration agent pipeline will be exhausted into the rotating pipe 16 through the connecting pipe 15, when the denitration agent is exhausted into the rotating pipe 16, the denitration agent will be sprayed in the denitration main body 2 through the atomizing nozzle 17, so that the denitration agent and nitrogen oxides in the exhaust gas will react chemically, the nitrogen oxides will be reduced to nitrogen and water, thereby realizing the effect of denitration of high-temperature exhaust gas;

[0028] At the same time, the driving motor 19 is controlled to be opened, when the driving motor 19 is opened, the first synchronous wheel 20 will be driven to rotate, when the first synchronous wheel 20 rotates, the second synchronous wheel 21 will be driven to rotate through the synchronous belt transmission, when the second synchronous wheel 21 rotates, the rotating pipe 16 will be driven to rotate, when the rotating pipe 16 rotates, the transmission gear 18 will be driven to rotate, when the transmission gear 18 rotates, the rotating pipe 16 will be relatively rotated through meshing, when the rotating pipe 16 relatively rotates, the atomizing nozzle 17 will be relatively swung synchronously, when the atomizing nozzle 17 relatively swings, the spraying area of the atomizing nozzle 17 will be further improved, thereby realizing the denitration of high-temperature exhaust gas, and further improving the mixing efficiency of the denitration agent and the exhaust gas.

[0029] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant industrial kiln denitrification device, characterized in that: The device includes a support frame (1), a denitrification body (2), and an air inlet trough (3). The upper end of the denitrification body (2) is fixedly connected to a connecting groove (4). The lower end of the air inlet trough (3) is fixedly connected to an air inlet (5). The front side of the lower end of the air inlet trough (3) is fixedly connected to a cold air outlet (6). A support frame (7) is fixedly installed on the inner wall of the middle part of the air inlet trough (3). The upper and lower ends of the support frame (7) are provided with flow openings (8). The inner walls of the support frame (7) are fixedly installed with mounting grooves (9). The inner walls of the mounting grooves (9) are press-fitted with a filter element (10) for filtering the exhaust gas inside the air inlet trough (3). The outer wall of the front end of the air inlet trough (3) is hinged with a maintenance door (11). The denitrification body (2) has an exhaust port (12) fixedly connected to the outer side of its lower end. An exhaust fan (13) is fixedly installed inside the exhaust port (12). A connecting pipe (15) is fixedly installed on the front side of the upper end of the denitrification body (2). A rotating pipe (16) is rotatably connected to the inner side of the connecting pipe (15) through a rotating joint. An atomizing nozzle (17) is fixedly connected to the outer end of the rotating pipe (16). A transmission gear (18) is fixedly installed on the outer curved surface of the front end of the rotating pipe (16). A drive motor (19) is fixedly installed on the front side of the upper end of the denitrification body (2). A first synchronous pulley (20) is fixedly installed on the inner drive shaft of the drive motor (19). A second synchronous pulley (21) is connected to the outer end of the first synchronous pulley (20) through a synchronous belt drive.

2. The high-temperature resistant industrial kiln denitrification equipment according to claim 1, characterized in that: The support frame (1), the denitrification body (2) and the air inlet trough (3) are made of high temperature resistant material. The denitrification body (2) is fixedly installed on the upper end of the support frame (1). The connecting trough (4) is fixedly connected to the upper end of the air inlet trough (3) on the side away from the denitrification body (2).

3. The high-temperature resistant industrial kiln denitrification equipment according to claim 2, characterized in that: The air inlet (5) is connected to the exhaust pipe of the external industrial kiln, and a temperature sensor for monitoring the internal temperature of the air inlet (3) is fixedly installed inside the lower end of the air inlet slot (3).

4. The high-temperature resistant industrial kiln denitrification equipment according to claim 3, characterized in that: The cold air vent (6) is connected to an external cold air duct, and a switch valve is fixedly installed at the front end of the cold air vent (6).

5. The high-temperature resistant industrial kiln denitrification equipment according to claim 4, characterized in that: There are several mounting grooves (9), which are symmetrically distributed on both sides of the inner wall of the support frame (7). The filter element (10) is made of high temperature resistant material.

6. The high-temperature resistant industrial kiln denitrification equipment according to claim 5, characterized in that: The bottom of the denitrification body (2) is fixedly connected to a discharge pipe (14), and a switch valve is fixedly installed at the lower end of the discharge pipe (14). The opening at the side end of the connecting pipe (15) is connected to an external denitrification agent pipeline. The rotating pipe (16) is rotatably connected to the inner wall of the upper end of the denitrification body (2) through a rotating shaft.

7. The high-temperature resistant industrial kiln denitrification equipment according to claim 6, characterized in that: There are several atomizing nozzles (17), which are symmetrically distributed at the outer end of the rotating tube (16). The transmission gears (18) are meshed with each other, and the second synchronous wheel (21) is fixedly installed on the outer curved surface of the front end of the rotating tube (16).

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