Dust removal device for sintering process

Abstract

The utility model discloses a sintering process dust removal device which comprises a dust removal structure for dust treatment, the dust removal structure is symmetrically provided with cooling structures for cooling parts of the dust removal structure, the dust removal structure comprises a box body with a hollow structure inside, through grooves are formed in the two sides of the box body in a penetrating mode, and the through grooves are communicated with the cooling structures. A through groove is formed in the box body, a perforated plate is arranged on the upper portion of the interior of the box body in the through groove, a collecting hopper facilitating dust collection is arranged on the perforated plate through the lower portion of the box body, and the collecting hopper is also provided with a supporting frame for installing and supporting the whole box body through the box body, the dust removal structure comprises the box body, a blowing pipe is arranged in the box body, and an electromagnetic pulse valve is arranged at one end of the blowing pipe; the electromagnetic pulse valve is provided with a filter bag through a perforated plate, a venturi tube and a filter frame, the dust removal structure comprises a collecting hopper, a pulse blowing instrument is embedded in the surface of the collecting hopper, and according to the dust removal device for the sintering process, the perforated plate is arranged, so that the effects of installation setting and limiting installation setting are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering process, in particular to a dust removal device for sintering process. Background Art

[0002] The firing process is an inevitable process in cement production, and a large amount of dust will be generated during the cement firing process. At present, the dust collectors used in cement kilns mainly include bag dust collectors and electrostatic dust collectors. In order to solve the problem that the original electrostatic dust collector has large resistance and excessive power consumption, the dust emission under standard conditions cannot meet the requirements of the dust emission concentration limit of kiln tail gas specified in the current "Air Pollution Emission Standard for Cement Industry" (GB4915-2013) (20mg / Nm 3 The limit in key areas is 10mg / Nm 3 In some areas, the limit even reaches 5mg / Nm 3 ) problem. Utility Model Content

[0003] The utility model aims to provide a dedusting device for a firing process in view of the shortcomings of the prior art, so as to solve the problems proposed in the above background technology that the resistance of the original electrostatic precipitator is too large, the power consumption is too large, and the dust emission under standard conditions cannot meet the requirements of the dust emission concentration limit value (20mg / Nm 3 The limit in key areas is 10mg / Nm 3 In some areas, the limit even reaches 5mg / Nm 3 ) problem.

[0004] To achieve the above object, the utility model provides the following technical solutions: a sintering process dust removal device, comprising a dust removal structure for dust treatment, wherein the dust removal structure is symmetrically provided with a cooling structure for heat dissipation and cooling of the dust removal structure components;

[0005] The dust removal structure includes a box body with a hollow internal structure, through grooves are opened on both sides of the box body, a porous plate is arranged above the inside of the box body inside the through groove, and a collecting bucket is arranged below the box body to facilitate dust collection through the porous plate. The collecting bucket is also provided with a support frame through the box body to support the installation of the entire box body.

[0006] By adopting the above technical solution, the porous plate is arranged to achieve the installation setting and limit installation setting effects.

[0007] Preferably, the dust removal structure includes a box body, a blow pipe is provided inside the box body, an electromagnetic pulse valve is provided at one end of the blow pipe, and the electromagnetic pulse valve is provided with a filter bag through a porous plate, a venturi tube and a filter frame.

[0008] By adopting the above technical solution, the filter frame is set to support and install the filter bag.

[0009] Preferably, the dust removal structure includes a collection hopper. A pulse jet blower is inlaid on the surface of the collection hopper. Below the collection hopper, a collection frame with a hollow structure inside is provided for the pulse jet blower. One side of the collection frame is provided with a discharge pipe in a through manner, and a screw conveyor adjusted by a motor rotation is arranged inside the collection frame through the discharge pipe.

[0010] By adopting the above technical solution, the screw conveyor is set to achieve the effect of electric rotation adjustment.

[0011] Preferably, the cooling structure is an installation frame with through holes. An intelligent speed regulation frequency converter for automatically adjusting the wind speed of the fan is arranged inside the installation frame. A filter net for protecting the fan is arranged on one side of the installation frame through the intelligent speed regulation frequency converter.

[0012] By adopting the above technical solution, the intelligent speed regulation frequency converter is set to achieve the effect of intelligent adjustment of the fan speed.

[0013] Preferably, two through grooves are provided, and the through grooves are symmetrically arranged about the center line of the box body.

[0014] By adopting the above technical solution, the through grooves are set to achieve the effects of ventilation, transportation and cooling.

[0015] Preferably, the overall shape of the installation frame is a "long strip rectangle" with holes.

[0016] By adopting the above technical solution, the installation frame is set to achieve the effects of opening and installation settings.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this dust removal device in the firing process,

[0018] (1) In this case, by setting the dust removal structure, the problems of too large resistance and too high power consumption of the original electrostatic precipitator are solved. Under standard conditions, the dust emission cannot meet the requirements of the emission concentration limit of kiln tail waste gas dust specified in the current "Emission Standard of Air Pollutants for Cement Industry" (GB4915 - 2013) (20mg / Nm 3 , the limit value in key areas is 10mg / Nm 3 , and the limit value in some areas even reaches 5mg / Nm 3 ). By setting the dust removal structure, high specific resistance dust can be captured. The flue gas does not need to be conditioned. The dust removal efficiency is high and stable. And the dust removal performance of the dust removal structure is not affected by the coal type and dust characteristics, and it is easy to achieve low emissions. The dust collection ability for high specific resistance soot is strong, and the emission concentration can be stably maintained at 10mg / Nm for a long time. 3The following, while having a simple structure, being lightweight and occupying less floor space, adopts an internal flue or a top-mounted flue, and an overall clean gas chamber or a large clean gas chamber structure. When dealing with the same air volume, compared with an electrostatic precipitator, the overall external shape of the equipment is reduced. And a reasonable air inlet method is adopted to avoid secondary dust flying. The air enters from the ash hopper side and enters the filtration chamber. Large particle dust settles first. Long filter bags and low-pressure pulse injection are used, with a long service life of the filter bags and low consumption of compressed air. And filter bags with a length of 6 - 9 meters are used, and the pulse cleaning only requires a blowing pressure of 0.25 Mpa - 0.4 Mpa, which extends the service life of the filter bags compared with other types of bag dust collectors. Online cleaning, fixed resistance cleaning, and offline cleaning are successively adopted, and online chamber maintenance is carried out. The effects of online cleaning, offline cleaning, and online chamber maintenance can be achieved through the opening and closing of the lifting valve device;

[0019] (2) Through the set cooling structure, the situation of the durability of the filter bag decreasing and the need to frequently replace the filter bag is solved. Through the set cooling structure, when different temperatures occur, at this time, the intelligent speed control frequency converter adjusts the fan to different speeds, and by changing the different speeds of the fan, it plays a role in cooling and dissipating heat for the filter bag under different temperatures. At the same time, using the cooling structure can not only achieve accurate cooling and energy saving and consumption reduction, but also set a temperature sensing module, so as to use the temperature sensing module to play a high-temperature alarm function. The alarm temperature is set at 170 °C, so that when the temperature of the dust removal structure ≥ 170 °C, it can be quickly processed to prevent equipment damage caused by too high temperature. The cooling structure can also modify the temperature for controlling the start of the fan according to different working conditions, so that the cooling structure can adapt to different working condition production environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view sectional structure schematic diagram of the present utility model;

[0021] Figure 2 is a schematic diagram of the dust removal structure of the present utility model;

[0022] Figure 3 is a schematic diagram of the cooling structure of the present utility model;

[0023] Figure 4 is a schematic diagram of the installation frame structure of the present utility model.

[0024] In the figure: 1. Dust removal structure, 101. Box body, 102. Through slot, 103. Perforated plate, 104. Collection hopper, 105. Blowing pipe, 106. Electromagnetic pulse valve, 107. Venturi tube, 108. Filter frame, 109. Filter bag, 1010. Pulse injection instrument, 1011. Collection frame, 1012. Motor, 1013. Screw conveyor, 2. Cooling structure, 201. Installation frame, 202. Intelligent speed control frequency converter, 203. Opposite fan, 204. Filter screen. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-4 , the present invention provides a technical solution: a dust removal device for the firing process, as Figure 1 and Figure 2 shown, including a dust removal structure 1 for dust treatment. The dust removal structure 1 includes a box body 101 with a hollow structure inside. Through grooves 102 are formed through both sides of the box body 101. There are two through grooves 102, and the through grooves 102 are symmetrically arranged about the center line of the box body 101. When two of the above-mentioned components are provided, it not only reflects the practicability of the opening of the above-mentioned components, but also reflects the ventilation and heat dissipation effects of the opening of the above-mentioned components. And the through grooves 102 are symmetrically arranged about the center line of the box body 101. When the above-mentioned components are symmetrically arranged, it effectively plays a comprehensive heat dissipation effect on the filter bag 109 arranged inside the box body 101, thereby avoiding the situation where only the front or the back of the filter bag 109 arranged inside the box body 101 can be cooled and dissipated. And two temperature sensing modules are arranged inside a single through groove 102, and the temperature sensing module is used to sense and transmit the temperature inside the box body 101. Above the box body 101 inside the through groove 102, there is a perforated plate 103. The perforated plate 103 is provided with a collection hopper 104 convenient for dust collection through the lower part of the box body 101. The collection hopper 104 is also provided with a support frame for installing and supporting the whole box body 101 through the box body 101. Among them, the perforated plate 103, the collection hopper 104 and the box body 101 are all arranged in the structure of the existing technology. When the structure of the existing technology is used, it effectively plays an installation effect on the venturi tube 107, the filter frame 108 and the filter bag 109.

[0027] In the above solution, further, the dust removal structure 1 includes a box body 101. A blowpipe 105 is arranged inside the box body 101. One end of the blowpipe 105 is provided with an electromagnetic pulse valve 106. The electromagnetic pulse valve 106 is provided with a filter bag 109 through a perforated plate 103, a venturi tube 107 and a filter frame 108. Among them, the filter bag 109 is installed with an aramid filter bag, and the filter bag 109 is installed with a filter bag 109 of 6-9 meters, so as to effectively achieve the effect of dust collection.

[0028] The above scheme is further developed in sequence, wherein the dust removal structure 1 includes a collecting bucket 104, and a pulse jet device 1010 is embedded on the surface of the collecting bucket 104. The pulse jet device 1010 is provided with a collecting frame 1011 with a hollow structure inside through the collecting bucket 104 below. A discharge pipe is provided on one side of the collecting frame 1011, and the discharge pipe is provided with a dragon 1013 which is rotated and adjusted by a motor 1012 inside the collecting frame 1011. The working pressure of the electromagnetic pulse valve 106 is controlled at 0.25-0.35 MPa by the pulse jet device 1010, thereby increasing the service life of the electromagnetic pulse valve 106.

[0029] In the above scheme, when dust enters the blowing pipe 105 through the electromagnetic pulse valve 106, the blowing pipe 105 blows the dust toward the inside of the box body 101. The dust entering the box body 101 passes through the porous plate 103 and the venturi 107 and enters the filter frame 108 and the filter bag 109, and the excess dust falls into the collecting frame 1011 through the collecting bucket 104. The dust entering the collecting frame 1011 is transported to the inside of the collecting frame 1011 through the motor 1012 and the dragon 1013.

[0030] like Figure 3 and Figure 4 As shown, the dust removal structure 1 is symmetrically provided with a cooling structure 2 for cooling the heat of the parts of the dust removal structure 1. The cooling structure 2 has a mounting frame 201 with through holes. The overall shape of the mounting frame 201 is a "long rectangle" with holes. When the above-mentioned parts are arranged in a "long rectangle" with holes, it can not only wrap the through groove 102 for installation, but also use the multiple through holes of the parts to install the fan 203 and the filter 204. When the above-mentioned parts are arranged in a "long rectangle" with holes, It effectively cools down and dissipates heat for the filter bag 109 arranged inside the box body 101. An intelligent speed-regulating frequency converter 202 for automatically adjusting the wind speed of the fan 203 is arranged inside the installation frame 201. The intelligent speed-regulating frequency converter 202 is provided with a filter net 204 for protecting the fan 203 through one side of the installation frame 201. Among them, the intelligent speed-regulating frequency converter 202 and the fan 203 are both arranged with the existing technical structure, and the existing technical structure is utilized to effectively achieve the fan 203 and intelligent speed regulation effects when the above two are arranged.

[0031] In the above scheme, when the temperature sensing module senses that the temperature inside the box 101 is high, the temperature sensing module transmits the signal to the intelligent speed regulating frequency converter 202. At this time, the intelligent speed regulating frequency converter 202 controls the fan 203 to work. During the operation of the fan 203, the box 101 and the filter bag 109 of the corresponding temperature are cooled and dissipated.

[0032] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only a simplified description for facilitating the description of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the protected content of the present utility model.

[0033] Although the present 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dust removal device for a firing process, comprising a dust removal structure (1) for treating dust, characterized in that: The dust removal structure (1) is symmetrically provided with a cooling structure (2) for dissipating heat and cooling the components of the dust removal structure (1); The dust removal structure (1) comprises a box body (101) with a hollow structure inside, through grooves (102) are provided on both sides of the box body (101), a porous plate (103) is provided inside the through grooves (102) and above the box body (101), the porous plate (103) is provided with a collection bucket (104) for convenient dust collection below the box body (101), and the collection bucket (104) is also provided with a support frame through the box body (101) for mounting and supporting the entire box body (101).

2. A dust removal device for a sintering process according to claim 1, characterized in that: The dust removal structure (1) comprises a box body (101), a blowing pipe (105) is arranged inside the box body (101), an electromagnetic pulse valve (106) is arranged at one end of the blowing pipe (105), and the electromagnetic pulse valve (106) is provided with a filter bag (109) through a porous plate (103), a venturi tube (107) and a filter frame (108).

3. A dust removal device for a sintering process according to claim 1, characterized in that: The dust removal structure (1) comprises a collecting bucket (104), a pulse jet device (1010) is embedded on the surface of the collecting bucket (104), a collecting frame (1011) with a hollow structure is provided below the collecting bucket (104) through the pulse jet device (1010), a discharge pipe is provided through one side of the collecting frame (1011), and the discharge pipe is provided with a dragon (1013) that is rotated and adjusted by a motor (1012) provided inside the collecting frame (1011).

4. A dust removal device for a sintering process according to claim 1, characterized in that: The cooling structure (2) is provided with a mounting frame (201) having through holes, an intelligent speed-regulating frequency converter (202) for automatically regulating the wind speed of a fan (203) is arranged inside the mounting frame (201), and a filter screen (204) for protecting the fan (203) is arranged on one side of the mounting frame (201) through the intelligent speed-regulating frequency converter (202).

5. The dust removal device for a sintering process according to claim 1, characterized in that: There are two through slots (102), and the through slots (102) are symmetrically arranged about the center line of the box body (101).

6. A dust removal device for a firing process according to claim 4, characterized in that: The overall shape of the installation frame (201) is a "long rectangle" with holes.

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