Multi-point pulverized coal jet burner for decomposing furnace

Abstract

The utility model relates to the technical field of decomposing furnace combustors, and discloses a multi-point pulverized coal injection combustor for a decomposing furnace, the multi-point pulverized coal injection combustor comprises a furnace body and a combustor body, the outer wall of the furnace body is communicated with a discharging pipe and a fixing ring, the outer side of the combustor body is provided with a fixing sleeve, the fixing sleeve extends into the fixing ring, and the discharging pipe is communicated with the combustor body. The fixing device comprises a fixing ring and is fixed through a clamping assembly, the clamping assembly comprises a clamping column penetrating through the fixing ring, a sliding groove is formed in the position, located on the outer side of the clamping column, of the fixing ring, a sliding block is arranged in the sliding groove in a sliding mode, and a spring is installed between the sliding block and the side wall of the sliding groove. A clamping groove matched with the clamping column is formed in the outer wall of the fixed sleeve; according to the burner, the clamping columns are matched with the clamping grooves, so that the burner body can be fixedly clamped, on the contrary, the burner body can be disassembled, and the disassembly and assembly convenience of the burner body is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of decomposition furnace combustor, and particularly relates to a multi-point coal powder injection combustor for a decomposition furnace. BACKGROUND

[0002] The decomposition furnace is a new type of thermal equipment in which fuel combustion, heat exchange and decomposition reaction are simultaneously performed. The decomposition furnace has various types and forms, and the basic principle is that preheated raw materials, a certain amount of fuel and an appropriate amount of hot gas are simultaneously fed into the decomposition furnace, the raw materials are in a suspended or boiling state in the furnace, and the fuel is flameless combusted at below 900 DEG C, and the heat transfer and calcium carbonate decomposition process are simultaneously and rapidly completed. The decomposition furnace can use solid, liquid or gaseous fuel, and the coal powder is mainly used as the fuel in China. The fuel added into the decomposition furnace accounts for about 55% to 65% of the total fuel.

[0003] A multi-point coal powder injection combustor for a decomposition furnace is disclosed in Chinese Utility Model Patent No. CN219571905U. The coal inlet pipe, the connecting pipe and the coal injection box are arranged horizontally relative to each other, which improves the powder injection surface, enables the coal powder to be diffused in all directions, and improves the fuel utilization rate, thereby reducing the probability of the decomposition furnace inner wall being covered with a skin. The combustor body is indirectly fixed to the decomposition furnace side wall through the maintenance frame, which facilitates the removal of the combustor for maintenance in case of failure. The sleeve is arranged to protect the connecting pipe from fire, which makes the powder supply safer. The spray connecting pipe part is fixed by the flange plate, which facilitates disassembly and later inspection and maintenance.

[0004] According to the related art, the inventors believe that the multi-point coal powder injection combustor for a decomposition furnace in the related art needs to be fixed by bolts during installation, which makes the disassembly and assembly of the multi-point coal powder injection combustor more cumbersome and reduces the disassembly and assembly efficiency of the multi-point coal powder injection combustor.

[0005] The above information disclosed in the background section of this document is only for the purpose of enhancing the understanding of the background of the present application, and therefore, it can include matters known by those skilled in the art but not constitute prior art. SUMMARY

[0006] In order to solve the problem that the multi-point coal powder injection combustor for a decomposition furnace in the related art needs to be fixed by bolts during installation, which makes the disassembly and assembly of the multi-point coal powder injection combustor more cumbersome and reduces the disassembly and assembly efficiency of the multi-point coal powder injection combustor, the present application provides a multi-point coal powder injection combustor for a decomposition furnace.

[0007] The multi-point coal powder injection combustor for a decomposition furnace provided by the present application adopts the following technical scheme:

[0008] The utility model provides a kind of multi-point coal powder injection burner for decomposition furnace, including furnace body and burner body, the outer wall of the furnace body is communicated with the feeder pipe and fixed ring, the outer side of the burner body is provided with fixed sleeve, the fixed sleeve is inserted into the inside of the fixed ring, and is fixed by clamping assembly, the clamping assembly includes the clamping column being arranged through the fixed ring, the outer side of the fixed ring is located the sliding slot being opened, the inside of the sliding slot is slidably provided with sliding block, spring is installed between the sliding block and the side wall of the sliding slot, the outer wall of the fixed sleeve is opened the clamping groove matched with the clamping column.

[0009] Preferably, the clamping column is fixedly installed with pull plate at one end away from the fixed ring.

[0010] Preferably, the outer wall of the fixed ring is symmetrically opened the positioning slot, the inside of the positioning slot is slidably provided with positioning strip, and the positioning strip is fixedly connected with the fixed sleeve.

[0011] Preferably, the outer side of the burner body is fixedly installed with limit baffle, the fixed sleeve is sleeved on the outer side of the burner body, and is fixedly connected with the limit baffle.

[0012] Preferably, the side wall of the limit baffle close to the fixed sleeve is fixedly installed with sealing gasket.

[0013] Summarized above, the present application includes the following beneficial technical effects:

[0014] 1. the present application is installed with fixed ring on the outer side of furnace body, and is cooperatively provided with clamping column, sliding slot, sliding block and spring, and is installed with fixed sleeve on the outer side of burner body, and is opened clamping groove, so as to realize the fixed clamping of burner body by making clamping column cooperate with clamping groove, otherwise, the burner body can be disassembled, improve the convenience of burner body disassembly.

[0015] 2. the present application is opened positioning slot on the inner wall of fixed ring, and is cooperatively installed with positioning strip on the outer wall of fixed sleeve, so that the installation of fixed sleeve and burner body can be fixed;Meanwhile, by being provided with limit baffle and sealing gasket, the sealing between furnace body and burner body can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the overall structure schematic diagram of application embodiment;

[0017] Fig. 2 It is the half cut structure schematic diagram of application embodiment fixed plate;

[0018] Fig. 3 It is the structure schematic diagram of application embodiment burner body.

[0019] Explanation of reference signs: 1, furnace body; 11, feeding pipe; 2, fixed ring; 21, positioning groove; 3, clamping assembly; 31, clamping column; 32, sliding groove; 33, sliding block; 34, spring; 35, pull plate; 4, burner body; 5, limiting baffle; 6, fixed sleeve; 61, clamping groove; 62, positioning strip. DETAILED DESCRIPTION

[0020] The following will be described in detail with reference to the accompanying drawings Figs. 1-3 The application is further described in detail.

[0021] The embodiment of the application discloses a multi-point coal powder injection burner for a decomposition furnace, which refers to Figs. 1-3 , comprising a furnace body 1 and a burner body 4, the outer wall of the furnace body 1 is communicated with a feeding pipe 11 and a fixed ring 2, the outer side of the burner body 4 is provided with a fixed sleeve 6, the fixed sleeve 6 extends into the inside of the fixed ring 2 and is fixed through a clamping assembly 3, the clamping assembly 3 comprises a clamping column 31 penetrating through the fixed ring 2, the outer side of the fixed ring 2 is provided with a sliding groove 32, the inside of the sliding groove 32 is slidably provided with a sliding block 33, the spring 34 is installed between the sliding block 33 and the side wall of the sliding groove 32, and the outer wall of the fixed sleeve 6 is provided with a clamping groove 61 matched with the clamping column 31.

[0022] Here, the burner body 4 is inserted into the inside of the fixed ring 2, then the clamping column 31 is pulled, the fixed sleeve 6 extends into the inside of the fixed ring 2, the clamping column 31 is loosened when the fixed sleeve 6 is inserted in place, at this time, the spring 34 can push the sliding block 33 to drive the clamping column 31 to extend into the inside of the clamping groove 61, so that the fixed installation of the burner body 4 can be realized; conversely, the clamping column 31 is pulled away from the clamping groove 61, so that the disassembly of the burner body 4 can be realized, the operation is simple and convenient, the disassembly efficiency of the burner body 4 is improved, and the practicability of the device is improved.

[0023] Referring to Fig. 2 , the end, away from the fixed ring 2, of the clamping column 31 is fixedly installed with a pull plate 35.

[0024] Here, the pull plate 35 is arranged, so that the clamping column 31 can be pulled away from the clamping groove 61.

[0025] Referring to Fig. 2 and Fig. 3 , the outer wall of the fixed ring 2 is symmetrically provided with a positioning groove 21, the inside of the positioning groove 21 is slidably provided with a positioning strip 62, and the positioning strip 62 is fixedly connected with the fixed sleeve 6.

[0026] Here, the positioning strip 62 and the positioning block are arranged, so that the installation direction of the burner body 4 can be fixed, and the inclination of the burner body 4 can be avoided.

[0027] Referring toFig. 3 The outer side of the burner body 4 is fixedly provided with a limiting baffle 5, and a fixed sleeve 6 is sleeved on the outer side of the burner body 4 and is fixedly connected with the limiting baffle 5.

[0028] Here, the limiting baffle 5 is arranged, so that the depth of the insertion of the burner body 4 into the fixed ring 2 can be quickly limited.

[0029] Referring to Fig. 3 The side wall of the limiting baffle 5 close to the fixed sleeve 6 is fixedly provided with a sealing gasket.

[0030] Here, the sealing gasket is arranged, so that the sealing performance between the burner body 4 and the fixed ring 2 can be improved.

[0031] The implementation principle of the multi-point coal powder injection burner for a decomposition furnace is as follows: in use, the device is placed at a specified position, then the burner body 4 is inserted into the fixed ring 2, then the clamping column 31 is pulled, and the fixed sleeve 6 is extended into the fixed ring 2, when the fixed sleeve 6 is inserted in place, the clamping column 31 is loosened, at this time, the spring 34 can push the sliding block 33 to drive the clamping column 31 to extend into the clamping groove 61, so that the fixed installation of the burner body 4 can be realized; conversely, the clamping column 31 is pulled away from the clamping groove 61, so that the disassembly and assembly of the burner body 4 can be realized, the operation is simple and convenient, the disassembly and assembly efficiency of the burner body 4 is improved, and the practicability of the device is improved.

[0032] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0033] Secondly: the utility model discloses the embodiment of the drawings only relates to the structure involved in the embodiment of the present disclosure, and other structures can refer to the usual design, and in the case of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0034] Finally: the above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0035] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A multi-point coal powder injection burner for a decomposition furnace, comprising a furnace body (1) and a burner body (4), characterized in that: The outer wall of the furnace body (1) is communicated with a discharging pipe (11) and a fixing ring (2), the outer side of the burner body (4) is provided with a fixing sleeve (6), the fixing sleeve (6) extends into the inside of the fixing ring (2) and is fixed through a clamping assembly (3), the clamping assembly (3) comprises a clamping column (31) penetrating through the fixing ring (2), a sliding groove (32) is arranged on the outer side of the clamping column (31), a sliding block (33) is slidably arranged in the sliding groove (32), a spring (34) is arranged between the sliding block (33) and the side wall of the sliding groove (32), and a clamping groove (61) matched with the clamping column (31) is arranged on the outer wall of the fixing sleeve (6).

2. A multi-point coal powder injection burner for a decomposition furnace according to claim 1, characterized in that: The end of the clamping column (31) away from the fixing ring (2) is fixedly provided with a pull plate (35).

3. The multi-point coal powder injection burner for a decomposition furnace according to claim 1, characterized in that: The outer wall of the fixing ring (2) is symmetrically provided with a positioning groove (21), the inside of the positioning groove (21) is slidably provided with a positioning strip (62), and the positioning strip (62) is fixedly connected with the fixing sleeve (6).

4. The multi-point coal powder injection burner for a decomposition furnace according to claim 1, characterized in that: The outer side of the burner body (4) is fixedly provided with a limiting baffle (5), the fixing sleeve (6) is sleeved on the outer side of the burner body (4) and is fixedly connected with the limiting baffle (5).

5. A multi-point coal powder injection burner for a decomposition furnace according to claim 4, characterized in that: The side wall of the limiting baffle (5) close to the fixing sleeve (6) is fixedly provided with a sealing gasket.

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