Dense-thin separation burner with blending device

Abstract

The invention relates to the field of combustors, in particular to a rich-lean separation combustor with a blending device, which comprises a combustor shell, a guide sheet is fixedly mounted on the inner side wall of the combustor shell, an elastic steel sheet extends from the end part of the guide sheet, the elastic steel sheet is bent, an adjusting thread bushing is connected to the edge of the rear end of the elastic steel sheet, and the adjusting thread bushing is connected to the inner side wall of the combustor shell. A ball sleeve is slidably installed on the outer surface of the adjusting threaded sleeve, a ball seat is installed on the outer surface of the ball sleeve in an attached mode, the ball seat is embedded in the rear end of the burner shell in a penetrating mode, an adjusting threaded column is connected to the rear end of the ball sleeve, the adjusting threaded sleeve is screwed to the outer surface of the adjusting threaded column, and an ejection piece is arranged at the corner of the burner shell. According to the invention, the concentration and the lightness of the separated pulverized coal can be adjusted, the use requirement is effectively met, and meanwhile, the service life of the burner is also ensured.

Description

Technical Field

[0001] The invention relates to the field of burners, and in particular to a thick-thin separation burner with a blending device. Background Art

[0002] The dense-lean separation burner is an advanced combustion equipment. When the coal powder airflow enters the curved part of the dense-lean separation burner, due to the inertia of the fluid, the coal powder particles will be subjected to an outward force, which is the centrifugal force. Under the action of centrifugal force, the heavier coal powder particles will be thrown to the outside of the curved pipe, while the lighter coal powder particles and air will remain on the inside. Therefore, at the outlet of the burner, the coal powder is divided into a dense phase and a light phase.

[0003] However, since the bending angle of the curved part of the existing thick-lean separation burner is constant, that is, the strength of the centrifugal force caused is constant, the thick and thin levels of the separated coal powder are constant during use and cannot be adjusted as needed, so it is difficult to meet the needs of use. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a rich-lean separation burner with a blending device.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a thick-thin separation burner with a mixing device, comprising a burner shell, an inner side wall of the burner shell is fixedly installed with a guide vane, an end of the guide vane is extended with an elastic steel sheet, the elastic steel sheet is bent, an adjusting threaded sleeve is connected to the rear end edge of the elastic steel sheet, a ball sleeve is slidably installed on the outer surface of the adjusting threaded sleeve, a ball seat is fitted on the outer surface of the ball sleeve, the ball seat is penetrated and embedded in the rear end of the burner shell, the rear end of the ball sleeve is connected with an adjusting threaded column, the adjusting threaded sleeve is screwed on the outer surface of the adjusting threaded column, a top piece is arranged at the corner of the burner shell, the top piece is pressed tightly against the elastic steel sheet, a fixing piece is installed at the rear end of the burner shell, and the fixing piece is pressed tightly against the ball sleeve.

[0006] Preferably, a connecting frame is rotatably mounted on the outer surface of the adjusting threaded column, an end of the connecting frame is fixed to the ball sleeve, and a No. 1 hand wheel is coaxially fixedly mounted on the end of the adjusting threaded column.

[0007] Preferably, a fixing block extends from the side edge of the guide vane, the end of the fixing block is fixed to the inner wall of the burner shell, a connecting shaft is embedded through the end of the adjusting threaded sleeve, both ends of the connecting shaft are rotatably mounted with shaft seats, and the end of the shaft seat is fixed to the elastic steel sheet.

[0008] Preferably, the fixing part includes a No. 1 threaded ring installed at the rear end of the burner shell, a No. 1 threaded column is screwed inside the No. 1 threaded ring, both ends of the No. 1 threaded column extend from the interior of the No. 1 threaded ring, one end of the No. 1 threaded column is connected to a push ear rack, the push ear rack is arranged at an angle, a fixing ear is installed through the side of the ball seat, the end of the fixing ear is pressed against the outer surface of the ball sleeve, and one end of the push ear rack is connected to the fixing ear.

[0009] Preferably, a lower connecting seat extends from the rear end edge of the fixed ear, one end of the push ear frame is rotatably connected to the inside of the lower connecting seat, the other end of the push ear frame is rotatably mounted with an upper connecting seat, the upper connecting seat is fixed to one end of the No. 1 threaded column, and the other end of the No. 1 threaded column is coaxially fixedly mounted with a No. 2 handwheel.

[0010] Preferably, a support frame is fixedly installed on the side of the No. 1 threaded ring, and the end of the support frame is fixed to the burner shell. A receiving groove is provided at the rear end of the burner shell, and the fixing ear is located inside the receiving groove. An ear hole is penetrated through the side of the ball seat, and the fixing ear fits inside the ear hole.

[0011] Preferably, guide edges are extended from the upper and lower end surfaces of the interior of the accommodating groove, and guide grooves are formed on the upper and lower end surfaces of the fixing ears, and the guide edges are fitted into the interior of the guide grooves.

[0012] Preferably, the top piece includes a plurality of rod sleeves evenly distributed and embedded in the corners of the burner shell, and a frame rod is slidably installed inside the plurality of rod sleeves, and a top sheet edge frame is fixedly installed at the end of the frame rod, and the top sheet edge frame is pressed tightly against the elastic steel sheet.

[0013] Preferably, a ring frame is fixedly installed at the lower edge of the burner shell, and a No. 2 threaded ring is embedded at the end of the ring frame. A No. 2 threaded column is screwed inside the No. 2 threaded ring, and both ends of the No. 2 threaded column pass through the interior of the No. 2 threaded ring.

[0014] Preferably, a door frame is fixedly installed on one end of the No. 2 threaded column, an arc-shaped top seat is fixedly installed on the end of the door frame, a plurality of tightening columns are evenly distributed and inlaid on the upper end of the arc-shaped top seat, a column sleeve is penetrated and inlaid on the lower end of the rod sleeve, the tightening column is slidably installed inside the column sleeve, the end of the tightening column is tightened on the frame rod, and a No. 3 handwheel is coaxially fixedly installed on the other end of the No. 2 threaded column.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By rotating the No. 1 threaded column, the No. 1 threaded column can use the thread between it and the No. 1 threaded ring to drive the push ear frame to move, and then drive the fixed ear to move. At this time, the guide edge slides in the guide groove to guide the fixed ear, so that the fixed ear can be separated from the ball sleeve, allowing the ball sleeve to move without the fixing ear. Then the adjusting threaded column is rotated to make the adjusting threaded sleeve tightened on the adjusting threaded column slide down in the ball sleeve to push the end of the elastic steel sheet to change the bending angle of the elastic steel sheet, that is, change the intensity of the centrifugal force, thereby changing the centrifugal separation effect of the coal powder airflow, so that the concentration and thinness of the coal powder after separation can be adjusted, effectively meeting the use requirements.

[0016] 2. By rotating the No. 2 threaded column, the No. 2 threaded column can use the thread between it and the No. 2 threaded ring to drive multiple tightening columns to move synchronously so as to detach from the frame rod, allowing multiple frame rods to move without the tightening of the tightening column. Subsequently, the multiple frame rods are pushed and adjusted so that the top plate edges on the multiple frame rods can be tightened against the elastic steel sheet from the outside, thereby increasing the force strength of the elastic steel sheet to avoid deformation caused by long-term impact of coal powder airflow, thereby effectively ensuring the service life of the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a thick-thin separation burner with a blending device according to the present invention; Figure 2 It is a schematic diagram of another perspective of a thick-thin separation burner with a blending device according to the present invention; Figure 3 The invention provides a thick-thin separation burner with a mixing device Figure 2 A magnified view of middle; Figure 4 It is a schematic diagram of the fixing ear of a thick-thin separation burner with a blending device according to the present invention; Figure 5 It is an internal view of a burner shell of a rich-light separation burner with a blending device according to the present invention; Figure 6 The invention provides a thick-thin separation burner with a mixing device Figure 5 Enlarged view of middle B; Figure 7 The present invention is a schematic diagram of a rod support of a thick-thin separation burner with a blending device.

[0018] In the figure: 1, burner shell; 2, arc top seat; 3, fixed block; 4, guide plate; 5, elastic steel sheet; 6, top plate rib frame; 7, frame rod; 8, ball sleeve; 9, ball seat; 10, adjusting thread sleeve; 11, connecting shaft; 12, shaft seat; 13, connecting frame; 14, adjusting thread column; 15, guide plate; 16, No. 1 hand wheel; 17, support frame; 18, upper seat; 19, No. 1 thread ring; 20 , threaded column No. 1; 21, hand wheel No. 2; 22, push ear rack; 23, fixed ear; 24, receiving groove; 25, guide edge; 26, guide groove; 27, ear hole; 28, lower seat; 29, rod sleeve; 30, column sleeve; 31, tightening column; 32, door frame; 33, threaded column No. 2; 34, threaded ring No. 2; 35, ring rack; 36, hand wheel No. 3; 37, dense phase nozzle; 38, light phase nozzle. DETAILED DESCRIPTION

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0020] like Figure 1-Figure 7 The thick-thin separation burner with a mixing device shown in the figure comprises a burner shell 1, a guide vane 4 is fixedly installed on the inner side wall of the burner shell 1, and an elastic steel sheet 5 is extended at the end of the guide vane 4. The guide vane 4 serves to guide the coal powder airflow to the elastic steel sheet 5. The elastic steel sheet 5 is bent and can generate centrifugal force to separate the coal powder airflow into a thick coal powder airflow and a thin coal powder airflow. An adjusting threaded sleeve 10 is connected to the rear end edge of the elastic steel sheet 5. The adjusting threaded sleeve 10 can push the end of the elastic steel sheet 5 to change the bending amplitude of the elastic steel sheet 5, thereby achieving the purpose of changing the bending angle. The outer surface of the adjusting threaded sleeve 10 slides A ball sleeve 8 is dynamically installed, and a ball seat 9 is fitted on the outer surface of the ball sleeve 8. The ball sleeve 8 can rotate inside the ball seat 9, so that the adjusting thread sleeve 10 can adapt to the change of the bending amplitude of the elastic steel sheet 5. The ball seat 9 is embedded in the rear end of the burner shell 1, and the rear end of the ball sleeve 8 is connected with an adjusting thread column 14. The adjusting thread sleeve 10 is screwed on the outer surface of the adjusting thread column 14. The adjusting thread column 14 can drive the adjusting thread sleeve 10 to move to push the end of the elastic steel sheet 5. A top piece is provided at the corner of the burner shell 1, and the top piece is pressed tightly against the elastic steel sheet 5. A fixing piece is installed at the rear end of the burner shell 1, and the fixing piece is pressed tightly against the ball sleeve 8.

[0021] A connecting frame 13 is rotatably mounted on the outer surface of the adjusting threaded column 14, and the end of the connecting frame 13 is fixed to the ball sleeve 8. The connecting frame 13 supports the adjusting threaded column 14. A hand wheel 16 is coaxially fixedly mounted on the end of the adjusting threaded column 14. The hand wheel 16 facilitates the rotation of the adjusting threaded column 14.

[0022] A fixing block 3 extends from the side edge of the guide vane 4, and the end of the fixing block 3 is fixed to the inner wall of the burner shell 1. The fixing block 3 serves to support and fix the guide vane 4. A connecting shaft 11 is embedded through the end of the adjusting threaded sleeve 10. The connecting shaft 11 can rotate in the shaft seat 12, so that the adjusting threaded sleeve 10 can adapt to the change of the bending amplitude of the elastic steel sheet 5. The two ends of the connecting shaft 11 are rotatably installed with shaft seats 12. The end of the shaft seat 12 is fixed to the elastic steel sheet 5, and the shaft seat 12 serves to bear the connecting shaft 11.

[0023] The fixing part includes a No. 1 threaded ring 19 installed at the rear end of the burner shell 1, and a No. 1 threaded column 20 is screwed inside the No. 1 threaded ring 19. Both ends of the No. 1 threaded column 20 extend from the inside of the No. 1 threaded ring 19. The No. 1 threaded ring 19 and the No. 1 threaded column 20 play a role in driving the movement of the push ear rack 22. One end of the No. 1 threaded column 20 is connected to the push ear rack 22, and the push ear rack 22 is inclined. A fixing ear 23 is installed through the side of the ball seat 9. The push ear rack 22 plays a role in pushing the fixing ear 23. The end of the fixing ear 23 is pressed tightly against the outer surface of the ball sleeve 8. The fixing ear 23 can press and fix the ball sleeve 8 to prevent the adjustment thread sleeve 10 from rotating, thereby ensuring that the elastic steel sheet 5 does not shake. One end of the push ear rack 22 is connected to the fixing ear 23.

[0024] A lower connecting seat 28 extends from the rear end edge of the fixing ear 23, and one end of the pushing ear frame 22 is rotatably connected to the inside of the lower connecting seat 28, and the lower connecting seat 28 serves to connect the fixing ear 23. The other end of the pushing ear frame 22 is rotatably mounted with an upper connecting seat 18, and the upper connecting seat 18 is fixed to one end of the No. 1 threaded column 20, and the upper connecting seat 18 serves to connect the fixing ear 23. A No. 2 handwheel 21 is coaxially fixedly mounted on the other end of the No. 1 threaded column 20, and the No. 2 handwheel 21 serves to facilitate the rotation of the No. 1 threaded column 20.

[0025] A support frame 17 is fixedly installed on the side of the No. 1 threaded ring 19, and the end of the support frame 17 is fixed to the burner shell 1. The support frame 17 supports and fixes the No. 1 threaded ring 19. A receiving groove 24 is provided at the rear end of the burner shell 1. The fixing ear 23 is located inside the receiving groove 24. The receiving groove 24 serves to accommodate the fixing ear 23. An ear hole 27 is provided through the side of the ball seat 9. The fixing ear 23 fits inside the ear hole 27. The ear hole 27 can allow the fixing ear 23 to pass through the ball seat 9 to be tightly pressed against the ball sleeve 8.

[0026] Guide ribs 25 are extended from the upper and lower end surfaces of the accommodating groove 24 , and guide grooves 26 are opened on the upper and lower end surfaces of the fixing ear 23 . The guide ribs 25 and the guide grooves 26 play a role in guiding the fixing ear 23 , and the guide ribs 25 fit inside the guide grooves 26 .

[0027] The top piece includes a plurality of rod sleeves 29 evenly distributed and embedded in the corners of the burner shell 1. A frame rod 7 is slidably installed inside the plurality of rod sleeves 29. The rod sleeves 29 guide the frame rod 7. A top sheet edge frame 6 is fixedly installed at the end of the frame rod 7. The frame rod 7 supports the top sheet edge frame 6. The top sheet edge frame 6 is pressed tightly against the elastic steel sheet 5. The top sheet edge frame 6 can be pressed tightly against the elastic steel sheet 5 from the outside, so as to increase the force strength of the elastic steel sheet 5 to avoid deformation caused by long-term impact of coal powder airflow.

[0028] A ring frame 35 is fixedly installed at the lower edge of the burner shell 1, and a No. 2 threaded ring 34 is inlaid at the end of the ring frame 35. The ring frame 35 plays a role in fixing the No. 2 threaded ring 34. A No. 2 threaded column 33 is screwed inside the No. 2 threaded ring 34. Both ends of the No. 2 threaded column 33 pass through the interior of the No. 2 threaded ring 34. The No. 2 threaded ring 34 and the No. 2 threaded column 33 play a role in driving the tightening column 31 to move.

[0029] A door frame 32 is fixedly installed at one end of the No. 2 threaded column 33, and an arc-shaped top seat 2 is fixedly installed at the end of the door frame 32. The door frame 32 serves to evenly apply thrust to the arc-shaped top seat 2. A plurality of tightening columns 31 are evenly distributed and inlaid on the upper end of the arc-shaped top seat 2. The arc-shaped top seat 2 serves to bear the tightening columns 31. A column sleeve 30 is penetrated and inlaid on the lower end of the rod sleeve 29. The tightening columns 31 are slidably installed inside the column sleeve 30. The column sleeve 30 serves to guide the tightening columns 31. The end of the tightening columns 31 is tightened on the frame rod 7. The tightening columns 31 can tighten the frame rod 7, and then fix the position of the top sheet prism 6. A No. 3 handwheel 36 is coaxially fixedly installed on the other end of the No. 2 threaded column 33. The No. 3 handwheel 36 serves to facilitate the rotation of the No. 2 threaded column 33.

[0030] During use, the pulverized coal gas flow enters the burner shell 1. When the pulverized coal gas flow passes through the bent elastic steel sheet 5, due to the centrifugal force, most of the pulverized coal is separated and concentrated on the outside to be discharged through the dense phase nozzle 37, while the light pulverized coal gas flow is located on the inside to be discharged through the light phase nozzle 38 under the guidance of the guide plate 15. If the degree of concentration and lightness of the pulverized coal after separation cannot meet the use requirements, the No. 1 threaded column 20 can be rotated first, so that the No. 1 threaded column 20 uses the thread between the No. 1 threaded ring 19 to drive the push ear frame 22 to move, and then drive the fixed ear 23 to move. At this time, the guide edge 25 slides in the guide groove 26 to guide the fixed ear 23, so that the fixed ear 23 can be separated from the ball sleeve 8, so that the ball sleeve 8 can move without the tightening of the fixed ear 23, and then the adjusting threaded column 14 is rotated to tighten the adjusting screw The adjusting threaded sleeve 10 on the column 14 can slide downward in the ball sleeve 8 to push the end of the elastic steel sheet 5 to change the bending angle of the elastic steel sheet 5, that is, to change the intensity of the centrifugal force, thereby changing the centrifugal separation effect of the coal powder airflow, so that the concentration and lightness of the coal powder after separation can meet the use requirements. In this process, the No. 2 threaded column 33 can be rotated so that the No. 2 threaded column 33 can use the thread between the No. 2 threaded ring 34 to drive the multiple tightening columns 31 to move synchronously to disengage from the frame rod 7, so that the multiple frame rods 7 can move without the tightening of the tightening columns 31, and then the multiple frame rods 7 are pushed and adjusted so that the top sheet edges 6 on the multiple frame rods 7 can be tightened on the elastic steel sheet 5 from the outside, so as to improve the force strength of the elastic steel sheet 5 to avoid deformation caused by long-term impact of the coal powder airflow.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A thick-thin separation burner with a blending device, comprising a burner shell (1), characterized in that: A guide vane (4) is fixedly mounted on the inner side wall of the burner shell (1), an elastic steel sheet (5) is extended from the end of the guide vane (4), the elastic steel sheet (5) is arranged in a curved shape, an adjusting threaded sleeve (10) is connected to the rear edge of the elastic steel sheet (5), a ball sleeve (8) is slidably mounted on the outer surface of the adjusting threaded sleeve (10), a ball seat (9) is fittedly mounted on the outer surface of the ball sleeve (8), the ball seat (9) penetrates and is embedded in the rear end of the burner shell (1), an adjusting threaded column (14) is connected to the rear end of the ball sleeve (8), the adjusting threaded sleeve (10) is screwed onto the outer surface of the adjusting threaded column (14), a top piece is arranged at the corner of the burner shell (1), the top piece is pressed against the elastic steel sheet (5), a fixing piece is installed at the rear end of the burner shell (1), the fixing piece is pressed against the ball sleeve (8).

2. A thick-thin separation burner with a blending device according to claim 1, characterized in that: A connecting frame (13) is rotatably mounted on the outer surface of the adjusting threaded column (14); an end of the connecting frame (13) is fixed to the ball sleeve (8); and a first hand wheel (16) is coaxially fixedly mounted on the end of the adjusting threaded column (14).

3. A thick-thin separation burner with a blending device according to claim 1, characterized in that: A fixing block (3) extends from the side edge of the guide vane (4), the end of the fixing block (3) is fixed to the inner wall of the burner shell (1), a connecting shaft (11) is inserted through the end of the adjusting threaded sleeve (10), and shaft seats (12) are rotatably mounted at both ends of the connecting shaft (11), and the end of the shaft seat (12) is fixed to the elastic steel sheet (5).

4. A thick-thin separation burner with a blending device according to claim 1, characterized in that: The fixing member comprises a No. 1 threaded ring (19) installed at the rear end of the burner shell (1), a No. 1 threaded column (20) being screwed inside the No. 1 threaded ring (19), both ends of the No. 1 threaded column (20) extending from the interior of the No. 1 threaded ring (19), one end of the No. 1 threaded column (20) being connected to a push ear frame (22), the push ear frame (22) being arranged in an inclined manner, a fixing ear (23) being installed through the side surface of the ball seat (9), the end of the fixing ear (23) being pressed against the outer surface of the ball sleeve (8), and one end of the push ear frame (22) being connected to the fixing ear (23).

5. A thick-thin separation burner with a blending device according to claim 4, characterized in that: A lower connecting seat (28) extends from the rear end edge of the fixing ear (23), one end of the pushing ear frame (22) is rotatably connected to the inside of the lower connecting seat (28), and the other end of the pushing ear frame (22) is rotatably mounted with an upper connecting seat (18), the upper connecting seat (18) is fixed to one end of a No. 1 threaded column (20), and the other end of the No. 1 threaded column (20) is coaxially fixedly mounted with a No. 2 handwheel (21).

6. A thick-thin separation burner with a blending device according to claim 4, characterized in that: A support frame (17) is fixedly mounted on the side of the No. 1 threaded ring (19), the end of the support frame (17) is fixed to the burner shell (1), a receiving groove (24) is provided at the rear end of the burner shell (1), the fixing ear (23) is located inside the receiving groove (24), and an ear hole (27) is provided through the side of the ball seat (9), the fixing ear (23) fits inside the ear hole (27).

7. A thick-thin separation burner with a blending device according to claim 6, characterized in that: Guide edges (25) are extended from the upper and lower end surfaces of the interior of the accommodating groove (24), and guide grooves (26) are opened on the upper and lower end surfaces of the fixing ears (23), and the guide edges (25) are fitted inside the guide grooves (26).

8. The thick-thin separation burner with a blending device according to claim 1, characterized in that: The top member comprises a plurality of rod sleeves (29) evenly distributed and penetrating the corners of the burner shell (1), a frame rod (7) being slidably installed inside each of the plurality of rod sleeves (29), a top sheet edge frame (6) being fixedly installed at the end of the frame rod (7), and the top sheet edge frame (6) being pressed tightly against the elastic steel sheet (5).

9. A thick-thin separation burner with a blending device according to claim 8, characterized in that: A ring frame (35) is fixedly mounted at the lower edge of the burner shell (1), a No. 2 threaded ring (34) is inlaid at the end of the ring frame (35), a No. 2 threaded column (33) is screwed inside the No. 2 threaded ring (34), and both ends of the No. 2 threaded column (33) extend through the interior of the No. 2 threaded ring (34).

10. A rich-lean separation burner with a blending device according to claim 9, characterized in that: A door frame (32) is fixedly mounted on one end of the second threaded column (33), an arc-shaped top seat (2) is fixedly mounted on the end of the door frame (32), a plurality of jacking columns (31) are evenly distributed and inlaid on the upper end of the arc-shaped top seat (2), a column sleeve (30) is penetrated and inlaid on the lower end of the rod sleeve (29), the jacking column (31) is slidably mounted inside the column sleeve (30), the end of the jacking column (31) is tightened on the frame rod (7), and a third hand wheel (36) is coaxially fixedly mounted on the other end of the second threaded column (33).

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