Ash anti-coking device for waste heat boiler

Abstract

The utility model relates to the technical field of waste heat boilers, in particular to a waste heat boiler soot anti-coking device which comprises a filter box and a cover plate, a conveying pipe is installed at one side end of the filter box, a smoke inlet pipe is installed at one side end, away from the conveying pipe, of the filter box, radiating fins distributed in an array mode are installed on the outer surface of the smoke inlet pipe, and the cover plate is installed on the outer surface of the smoke inlet pipe. Two collecting boxes are installed at the lower end of the filter box and communicated with the filter box, the upper end of the filter box is open, the cover plate is installed at the upper end of the filter box, two alloy filter screens are installed at the lower end of the cover plate, and supporting plates which are symmetrically distributed are installed at the upper end of the filter box. A mounting plate is mounted at the upper end of the supporting plate, an electric push rod is mounted at the upper end of the mounting plate, and symmetrically-distributed fixing rods are mounted at the tail end of a piston rod of the electric push rod. The waste heat boiler has the advantages that coking in the waste heat boiler can be prevented, and normal use of the waste heat boiler is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat boilers, in particular to a waste heat boiler soot anti-coking device. Background Art

[0002] Waste heat boiler, as the name implies, is a boiler that uses the waste heat in waste gas, waste materials or waste liquids from various industrial processes and the heat generated by the combustion of combustible materials to heat water to a certain temperature. The waste heat boiler is divided into six circulation loops, each of which consists of a downcomer and an upcomer. The feed water of each flue section is introduced from the boiler drum through the downcomer to the lower header of each flue and then enters each heating surface. After the water passes through the heating surface, it generates steam and enters the inlet header, and then is introduced into the boiler drum through the upcomer.

[0003] At present, when the waste heat boiler is in use, high-temperature flue gas directly enters the waste heat boiler. The temperature of the high-temperature flue gas is relatively high, and the flue gas also carries dust. When the flue gas temperature is higher than the melting point of the dust, it will cause coking in the waste heat boiler, which will require subsequent decoking. Decoking is difficult and poses a safety risk. Utility Model Content

[0004] The purpose of the utility model is to provide a waste heat boiler ash anti-coking device, which has the advantages of preventing coking in the waste heat boiler, ensuring the normal use of the waste heat boiler, and solving the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste heat boiler ash anti-coking device, comprising a filter box and a cover plate, a conveying pipe is installed on one side end of the filter box, and a smoke inlet pipe is installed on the side end of the filter box away from the conveying pipe, and the outer surface of the smoke inlet pipe is installed with heat dissipation fins distributed in an array, and the heat dissipation fins are embedded in the smoke inlet pipe, and a collecting box is installed at the lower end of the filter box, two collecting boxes are provided, and the collecting boxes are connected to the filter box, and the upper end of the filter box is open, the cover plate is installed at the upper end of the filter box, and an alloy filter screen is installed at the lower end of the cover plate, and two alloy filter screens are provided, and symmetrically distributed support plates are installed on the upper end of the filter box, and a mounting plate is installed on the upper end of the support plate, and an electric push rod is installed on the upper end of the mounting plate, and symmetrically distributed fixing rods are installed at the end of the piston rod of the electric push rod.

[0006] When using the waste heat boiler ash anti-coking device of the utility model,

[0007] The smoke inlet pipe of the utility model is connected with the high-temperature smoke pipeline, and the delivery pipe is connected with the smoke inlet of the waste heat boiler. The high-temperature smoke can enter the smoke inlet pipe, and can quickly absorb the heat of the high-temperature smoke through the heat sink, and then dissipate the heat to the outside. Thereafter, the smoke can enter the filter box, and the dust in the smoke can be filtered and retained through the alloy filter. After the smoke is filtered, it can enter the waste heat boiler from the delivery pipe. When the alloy filter needs to be cleaned, the electric push rod is used to make the scraper plate descend, and the scraper plate can scrape off the dust retained by the alloy filter, and the scraped dust can enter the collection box.

[0008] Preferably, a dust exhaust pipe connected to the collection box is installed at the lower end of the collection box, and a valve is provided on the dust exhaust pipe.

[0009] Preferably, the upper end of the cover plate is provided with mounting holes distributed in an array, the upper end of the filter box is provided with threaded holes corresponding to the mounting holes, and bolts are installed in the mounting holes and the inner threads of the threaded holes.

[0010] Preferably, an extension hole is provided at the upper end of the filter box, two extension holes are provided corresponding to the fixing rods, and the fixing rods extend from the extension holes into the filter box.

[0011] Preferably, a scraper plate is installed at the end of the fixing rod, the scraper plate is located in the filter box, and the side end of the scraper plate is in contact with the alloy filter screen.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: high-temperature flue gas can enter the smoke inlet pipe, and the heat of the high-temperature flue gas can be quickly absorbed by the heat sink, and then the heat is dissipated to the outside, thereby reducing the temperature of the high-temperature flue gas to prevent the dust from melting and coking due to excessive temperature. The cooled flue gas can enter the filter box, and the dust in the flue gas can be filtered and retained by the alloy filter to prevent the dust from entering the waste heat boiler. The cooperation of the two can effectively prevent coking in the waste heat boiler and ensure the normal use of the waste heat boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above.

[0016] The reference numerals and names in the figures are as follows:

[0017] 101. Filter box; 102. Delivery pipe; 103. Collection box; 104. Dust exhaust pipe; 201. Smoke inlet pipe; 202. Heat sink; 301. Cover plate; 302. Support plate; 303. Mounting plate; 304. Electric push rod; 305. Fixing rod; 306. Alloy filter; 307. Dust scraper. 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] Example

[0020] See also Figures 1 to 3 The utility model provides an embodiment: a waste heat boiler ash anti-coking device, comprising:

[0021] The filter box 101 and the cover plate 301, the one side end of the filter box 101 is installed with a delivery pipe 102, the one side end of the filter box 101 away from the delivery pipe 102 is installed with a smoke inlet pipe 201, the outer surface of the smoke inlet pipe 201 is installed with heat sinks 202 distributed in an array, and the heat sinks 202 are embedded in the smoke inlet pipe 201, and the lower end of the filter box 101 is installed with a collection box 103, and two collection boxes 103 are provided, and the collection boxes 103 are connected to the filter box 101, and the filter box 101 is provided with a collection box 103. The upper end of the box 101 is open, the cover plate 301 is installed on the upper end of the filter box 101, the lower end of the cover plate 301 is installed with an alloy filter screen 306, two alloy filter screens 306 are provided, the upper end of the filter box 101 is installed with a symmetrically distributed support plate 302, the upper end of the support plate 302 is installed with a mounting plate 303, the upper end of the mounting plate 303 is installed with an electric push rod 304, and the end of the piston rod of the electric push rod 304 is installed with a symmetrically distributed fixing rod 305.

[0022] In this embodiment, the smoke inlet pipe 201 of the utility model is connected to the high-temperature smoke pipeline, and the delivery pipe 102 is connected to the smoke inlet of the waste heat boiler. The high-temperature smoke can enter the smoke inlet pipe 201, and the heat of the high-temperature smoke can be quickly absorbed by the heat sink 202, and then the heat is dissipated to the outside. Thereafter, the smoke can enter the filter box 101, and the dust in the smoke can be filtered and retained by the alloy filter 306. After the smoke is filtered, it can enter the waste heat boiler from the delivery pipe 102. When the alloy filter 306 needs to be cleaned, the electric push rod 304 is operated to make the scraper plate 307 descend, and the scraper plate 307 can scrape off the dust retained by the alloy filter 306, and the scraped dust can enter the collection box 103.

[0023] Furthermore,

[0024] The lower end of the collecting box 103 is provided with a dust exhaust pipe 104 which is connected to the collecting box 103 and a valve is provided on the dust exhaust pipe 104. When a lot of dust is collected in the collecting box 103, the dust in the collecting box 103 can be discharged through the dust exhaust pipe 104.

[0025] Furthermore,

[0026] The upper end of the cover plate 301 is provided with mounting holes distributed in an array, and the upper end of the filter box 101 is provided with threaded holes corresponding to the mounting holes, and bolts are installed in the mounting holes and the threaded holes. The mounting holes and the threaded holes are provided with bolts to install the cover plate 301.

[0027] Furthermore,

[0028] The upper end of the filter box 101 is provided with an extension hole, and two extension holes are provided corresponding to the fixing rods 305, and the fixing rods 305 extend from the extension holes into the filter box 101. The provision of the extension holes can facilitate the fixing rods 305 to move up and down.

[0029] Furthermore,

[0030] The end of the fixing rod 305 is provided with a scraper plate 307, which is located in the filter box 101, and the side end of the scraper plate 307 is in contact with the alloy filter screen 306. The arrangement of the scraper plate 307 can scrape off the dust on the alloy filter screen 306.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A waste heat boiler ash anti-coking device, comprising a filter box (101) and a cover plate (301), characterized in that: A conveying pipe (102) is installed at one end of the filter box (101), a smoke inlet pipe (201) is installed at one end of the filter box (101) away from the conveying pipe (102), the outer surface of the smoke inlet pipe (201) is installed with heat sinks (202) distributed in an array, the heat sinks (202) are embedded in the smoke inlet pipe (201), a collecting box (103) is installed at the lower end of the filter box (101), two collecting boxes (103) are provided, and the collecting boxes (103) are communicated with the filter box (101), and the filter box (101) The upper end of the filter box (101) is open, the cover plate (301) is mounted on the upper end of the filter box (101), an alloy filter screen (306) is mounted on the lower end of the cover plate (301), two alloy filter screens (306) are provided, a symmetrically distributed support plate (302) is mounted on the upper end of the filter box (101), a mounting plate (303) is mounted on the upper end of the support plate (302), an electric push rod (304) is mounted on the upper end of the mounting plate (303), and a symmetrically distributed fixing rod (305) is mounted on the end of the piston rod of the electric push rod (304).

2. The waste heat boiler ash anti-coking device according to claim 1, characterized in that: A dust exhaust pipe (104) connected to the collection box (103) is installed at the lower end of the collection box (103), and a valve is arranged on the dust exhaust pipe (104).

3. The waste heat boiler ash anti-coking device according to claim 1, characterized in that: The upper end of the cover plate (301) is provided with mounting holes distributed in an array, and the upper end of the filter box (101) is provided with threaded holes corresponding to the mounting holes, and bolts are threadedly installed in the mounting holes and the threaded holes.

4. The waste heat boiler ash anti-coking device according to claim 1, characterized in that: An extension hole is provided at the upper end of the filter box (101), and two extension holes are provided corresponding to the fixing rods (305), and the fixing rods (305) extend from the extension holes into the filter box (101).

5. The waste heat boiler ash anti-coking device according to claim 1, characterized in that: A dust scraper plate (307) is installed at the end of the fixing rod (305). The dust scraper plate (307) is located in the filter box (101), and the side end of the dust scraper plate (307) is in contact with the alloy filter screen (306).

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