Combustion furnace waste gas filtering device

Abstract

The utility model discloses a combustion furnace waste gas filtering device which comprises a filtering kettle and a cover plate, the cover plate movably covers the top end of the filtering kettle, a supporting mechanism for conveniently supporting the filtering kettle is arranged on the outer side of the filtering kettle, a spiral pipe is fixedly arranged in the filtering kettle in an embedded mode, and the spiral pipe is connected with the filtering kettle. An exhaust pipe is fixedly embedded in the top end of the cover plate, and an electromagnetic valve is fixedly embedded in the lower end of the filtering kettle. Waste gas is injected into the filtering kettle through the injection mechanism, then the waste gas is washed by a water source in the filtering kettle, heat is absorbed by the water source, then the waste gas is filtered through the filter screen and discharged through the exhaust pipe, and a cooling water source is injected from one side of the spiral pipe and discharged from the other side of the spiral pipe. Heat is absorbed and taken out by a cooling water source and then is recycled, so that heat recycling work is facilitated, heat waste is prevented, meanwhile, the quantity of impurities in waste gas is reduced through water washing, and the impurities in the waste gas are removed through filtering of a filter screen.

Description

Technical Field

[0001] The utility model relates to the field of waste gas filtering equipment, in particular to a combustion furnace waste gas filtering device. Background Art

[0002] Exhaust gas filtration is a process of removing harmful substances and particulate matter from exhaust gas so that the exhaust gas can meet emission standards and prevent the surrounding environment from being polluted.

[0003] The exhaust gas needs to be filtered when it is discharged to prevent the dust inside the exhaust gas from polluting the surrounding environment. For the exhaust gas from the combustion furnace, if it is directly filtered and discharged, a large amount of heat contained in the exhaust gas will also be directly discharged and wasted, resulting in a waste of heat energy. Therefore, a device is urgently needed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a combustion furnace exhaust gas filtering device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combustion furnace exhaust gas filtering device, comprising a filter kettle and a cover plate, the cover plate movably covers the top position of the filter kettle, a supporting mechanism for supporting the filter kettle is arranged on the outside of the filter kettle, a spiral tube is fixedly arranged inside the filter kettle, an exhaust pipe is fixedly arranged on the top of the cover plate, an electromagnetic valve is fixedly arranged at the lower end of the filter kettle, a discharge pipe is fixedly arranged at the bottom end of the electromagnetic valve, a filter screen is fixedly arranged inside the filter kettle, a support plate is fixedly arranged inside the filter kettle, and the support plate An injection mechanism for convenient exhaust gas injection is provided at the center. When in use, the exhaust gas is injected into the filter kettle through the injection mechanism, and then the exhaust gas is washed by the water source inside the filter kettle, and the heat is absorbed by the water source. After that, the exhaust gas is filtered through the filter net and then discharged through the exhaust pipe. The cooling water source is injected through one side of the spiral tube and discharged from the other side of the spiral tube, so that the heat is adsorbed and brought out by the cooling water source and then reused. This facilitates the recovery and reuse of heat and prevents heat waste. At the same time, the amount of debris in the exhaust gas is reduced by water washing, and then filtered through the filter net to ensure that the debris in the exhaust gas is removed.

[0006] Preferably, the supporting mechanism comprises a fixing ring, a column and a supporting ring, wherein the fixing ring is fixed to the outside of the filter kettle, the column is fixed to the lower end of the fixing ring, and the supporting ring is fixed to the lower end of the column, so as to facilitate stable support of the filter kettle.

[0007] Preferably, the injection mechanism includes an injection pipe, a movable sleeve, a limiting ring and an ejection pipe. The injection pipe is embedded and fixed in the center position of the support plate, the injection pipe is movably extended to the outside of the cover plate, the movable sleeve is movably sleeved on the lower end of the injection pipe, the limiting ring is fixed at the bottom end of the injection pipe, and the ejection pipe is embedded and fixed on the outside of the movable sleeve. When in use, the exhaust gas is injected through the injection pipe and then ejected through the ejection pipe, so that the movable sleeve rotates under the impact of the exhaust gas, thus having a certain stirring function, so that the exhaust gas and the water source are evenly mixed and contacted, thereby facilitating the rapid transfer of heat to the inside of the water source.

[0008] Preferably, both sides of the spiral tube are fixedly extended to the outside of the filter kettle, and one side of the spiral tube is connected to the cooling water source pipe.

[0009] Preferably, there is a movable sealing contact between the injection pipe and the cover plate.

[0010] Preferably, the top end of the limiting ring is tightly attached to the inner wall of the movable sleeve.

[0011] Preferably, there are a plurality of ejection pipes which are equidistantly arranged outside the movable sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When the utility model is in use, the exhaust gas is injected into the filter kettle through the injection mechanism, and then the exhaust gas is washed by the water source inside the filter kettle, and the heat is absorbed by the water source. After that, the exhaust gas is filtered through the filter net and then discharged through the exhaust pipe. The cooling water source is injected through one side of the spiral tube and discharged from the other side of the spiral tube, so that the heat is adsorbed and taken out by the cooling water source, and then reused. This facilitates the recovery and reuse of heat and prevents heat waste. At the same time, the amount of debris in the exhaust gas is reduced by water washing, and then filtered through the filter net to ensure that the debris in the exhaust gas is removed;

[0014] 2. When the utility model is in use, the exhaust gas is injected through the injection pipe and then ejected through the ejection pipe, so that the movable sleeve rotates under the impact of the exhaust gas, which has a certain stirring function, so that the exhaust gas and the water source are evenly mixed and contacted, thereby facilitating the rapid transfer of heat to the inside of the water source. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a combustion furnace exhaust gas filtering device of the utility model;

[0016] Figure 2 This is a cross-sectional view of a combustion furnace exhaust gas filtering device of the utility model;

[0017] Figure 3 It is an enlarged schematic diagram of a combustion furnace exhaust gas filtering device A of the utility model.

[0018] In the figure: 1. filter kettle; 2. cover plate; 3. injection pipe; 4. exhaust pipe; 5. spiral pipe; 6. support mechanism; 7. support plate; 8. filter screen; 9. movable sleeve; 10. solenoid valve; 11. limit ring; 12. spray pipe; 13. discharge pipe. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 The utility model provides a combustion furnace exhaust gas filtering device, including a filtering kettle 1 and a cover plate 2, the cover plate 2 movably covers the top position of the filtering kettle 1, the outside of the filtering kettle 1 is provided with a supporting mechanism 6 for supporting the filtering kettle 1, a spiral tube 5 is embedded and fixed inside the filtering kettle 1, both sides of the spiral tube 5 are fixedly extended to the outside of the filtering kettle 1, one side of the spiral tube 5 is connected to a cooling water source pipe, an exhaust pipe 4 is embedded and fixed on the top of the cover plate 2, a solenoid valve 10 is embedded and fixed at the lower end of the filtering kettle 1, a discharge pipe 13 is fixed to the bottom end of the solenoid valve 10 through a connecting valve, a filter screen 8 is fixed inside the filtering kettle 1 by bolts, and a filter is fixed inside the filtering kettle 1 by bolts. A support plate 7 is provided with an injection mechanism at the center of the support plate 7 for convenient waste gas injection. When in use, the waste gas is injected into the filter kettle 1 through the injection mechanism, and then the waste gas is washed by the water source inside the filter kettle 1, and the heat is absorbed by the water source. After that, the waste gas is filtered through the filter screen 8 and then discharged through the exhaust pipe 4. The cooling water source is injected through one side of the spiral tube 5 and discharged from the other side of the spiral tube 5, so that the heat is adsorbed and taken out by the cooling water source and then reused. This facilitates the recovery and reuse of heat and prevents heat waste. At the same time, the amount of debris in the waste gas is reduced by water washing, and then filtered through the filter screen 8 to ensure that the debris in the waste gas is removed.

[0021] The supporting mechanism 6 includes a fixing ring, a column and a supporting ring. The fixing ring is fixed to the outside of the filter kettle 1 by bolts, the column is fixed to the lower end of the fixing ring by bolts, and the supporting ring is fixed to the lower end of the column by bolts, so as to facilitate stable support of the filter kettle 1.

[0022] The injection mechanism includes an injection pipe 3, a movable sleeve 9, a limiting ring 11 and an ejection pipe 12. The injection pipe 3 is embedded and fixed in the center position of the support plate 7. The injection pipe 3 is movably extended to the outside of the cover plate 2. The injection pipe 3 and the cover plate 2 are in movable sealing contact. The movable sleeve 9 is movably sleeved on the lower end of the injection pipe 3. The limiting ring 11 is welded and fixed on the bottom end of the injection pipe 3. The top of the limiting ring 11 is tightly attached to the inner wall of the movable sleeve 9. The ejection pipe 12 is embedded and fixed on the outside of the movable sleeve 9. There are several ejection pipes 12, which are equidistant on the outside of the movable sleeve 9. When in use, the exhaust gas is injected through the injection pipe 3 and then ejected through the ejection pipe 12, so that the movable sleeve 9 rotates under the impact of the exhaust gas, so that it has a certain stirring function, so that the exhaust gas and the water source are evenly mixed and contacted, thereby facilitating the rapid transfer of heat to the inside of the water source.

[0023] Working principle: when in use, the exhaust gas is injected into the filter kettle 1 through the injection mechanism, and then the exhaust gas is washed by the water source inside the filter kettle 1, and the heat is absorbed by the water source. After that, the exhaust gas is filtered through the filter screen 8 and discharged through the exhaust pipe 4, and the cooling water source is injected through one side of the spiral tube 5 and discharged from the other side of the spiral tube 5, so that the heat is adsorbed and taken out by the cooling water source, and then reused, which is convenient for heat recovery and reuse and prevents heat waste. At the same time, the amount of debris in the exhaust gas is reduced by water washing, and then filtered through the filter screen 8 to ensure that the debris in the exhaust gas is removed; when in use, the exhaust gas is injected through the injection pipe 3 and then ejected through the ejection pipe 12, so that the movable sleeve 9 rotates under the impact of the exhaust gas, which has a certain stirring function, so that the exhaust gas and the water source are evenly mixed and contacted, thereby facilitating the rapid transfer of heat to the inside of the water source.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] 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 combustion furnace exhaust gas filtering device, comprising a filtering kettle (1) and a cover plate (2), characterized in that: The cover plate (2) is movably covered at the top position of the filter kettle (1); a support mechanism (6) is arranged on the outside of the filter kettle (1) for supporting the filter kettle (1); a spiral tube (5) is fixedly arranged inside the filter kettle (1); an exhaust pipe (4) is fixedly arranged on the top of the cover plate (2); a solenoid valve (10) is fixedly arranged at the lower end of the filter kettle (1); a discharge pipe (13) is fixedly arranged at the bottom end of the solenoid valve (10); a filter screen (8) is fixedly arranged inside the filter kettle (1); a support plate (7) is fixedly arranged inside the filter kettle (1); and an injection mechanism for convenient exhaust gas injection is arranged at the center of the support plate (7).

2. The combustion furnace exhaust gas filtering device according to claim 1, characterized in that: The support mechanism (6) comprises a fixing ring, a column and a support ring, wherein the fixing ring is fixed to the outside of the filter kettle (1), the column is fixed to the lower end of the fixing ring, and the support ring is fixed to the lower end of the column.

3. The combustion furnace exhaust gas filtering device according to claim 2, characterized in that: The injection mechanism comprises an injection pipe (3), a movable sleeve (9), a limiting ring (11) and an ejection pipe (12); the injection pipe (3) is embedded and fixed at the center position of the support plate (7); the injection pipe (3) is movably extended to the outside of the cover plate (2); the movable sleeve (9) is movably sleeved on the lower end of the injection pipe (3); the limiting ring (11) is fixed on the bottom end of the injection pipe (3); and the ejection pipe (12) is embedded and fixed on the outside of the movable sleeve (9).

4. The combustion furnace exhaust gas filtering device according to claim 3 is characterized in that: Both sides of the spiral tube (5) are fixedly extended to the outside of the filter kettle (1), and one side of the spiral tube (5) is connected to a cooling water source pipe.

5. The combustion furnace exhaust gas filtering device according to claim 4, characterized in that: The injection pipe (3) and the cover plate (2) are in movable sealing contact.

6. The combustion furnace exhaust gas filtering device according to claim 5, characterized in that: The top end of the limiting ring (11) is tightly attached to the inner wall of the movable sleeve (9).

7. A combustion furnace exhaust gas filtering device according to claim 6, characterized in that: A plurality of ejection pipes (12) are provided, and are equidistantly arranged outside the movable sleeve (9).

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