Boiler flue tail gas recycling device for cane sugar processing

Abstract

The invention discloses a cane sugar processing boiler flue tail gas recycling device, and relates to the technical field of tail gas recycling, the cane sugar processing boiler flue tail gas recycling device comprises a boiler main body, the center of the inner bottom wall of the boiler main body is provided with an evaporation dish, the center of the top of the boiler main body is fixedly provided with an air collection box, and the inner top wall of the boiler main body is rotatably provided with a rotating shaft; in the process of heating and concentrating sugarcane juice, water vapor can be guided into an air collecting box through a coiled pipe and pushes blades to drive a rotating shaft, an electric push rod and a stirring rod to rotate, and then by starting the electric push rod, the driving end of the electric push rod can extend to drive the stirring rod to move downwards into an evaporation dish; the sugarcane juice in the evaporation dish can be stirred, the evaporation rate of the sugarcane juice is increased, in addition, rotation of the stirring rod can be used as a driving source by means of thrust of water vapor movement, extra electric energy does not need to be consumed, the effect of recycling tail gas generated in the boiler body is achieved, and the processing cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas recovery and utilization, and in particular to a boiler flue tail gas recovery and utilization device for sugarcane processing. Background Art

[0002] Sucrose is a sweet condiment extracted from plants such as sugar cane and beets. It is widely used in food and beverages. Sucrose is a sweet condiment extracted from plants such as sugar cane and beets. It is a kind of disaccharide.

[0003] When processing sucrose, it is usually necessary to first squeeze out the juice from the sugarcane, then evaporate the sugarcane juice, and finally concentrate it into sucrose. This process requires the use of a sucrose processing boiler.

[0004] In order to speed up the evaporation efficiency of sugarcane juice in the boiler, a stirring structure is usually set in the boiler. By cooperating with the stirring structure, that is, using a motor to drive the stirring shaft to stir, heat and evaporate the sugarcane juice, the evaporation rate of the sugarcane juice can be increased. However, the setting of the stirring structure will inevitably increase the electrical energy during processing, thereby increasing the processing cost.

[0005] Therefore, we designed a boiler flue gas recovery and utilization device for sugarcane processing to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a boiler flue tail gas recovery and utilization device for sugarcane processing. In the process of heating and concentrating sugarcane juice, water vapor will be introduced into the wind collecting box through the serpentine pipe, and push the blades to drive the rotating shaft, the electric push rod and the stirring rod to rotate. Then, by turning on the electric push rod, the driving end of the electric push rod can be extended to drive the stirring rod to move downward to the inside of the evaporating dish, so as to stir the sugarcane juice in the evaporating dish and accelerate the evaporation rate of the sugarcane juice. In addition, the rotation of the stirring rod can rely on the thrust of the water vapor movement as a driving source, without consuming additional electric energy, so as to achieve the effect of recycling the tail gas generated in the boiler body, reduce the processing cost, and solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the present invention provides a flue gas exhaust recovery and utilization device for a sugarcane processing boiler, including a boiler main body, an evaporating dish is arranged at the center of the inner bottom wall of the boiler main body, a wind collecting box is fixedly installed at the center of the top of the boiler main body, a rotating shaft is rotatably arranged on the inner top wall of the boiler main body, the top end of the rotating shaft extends into the wind collecting box, an electric push rod is fixedly installed at the bottom end of the rotating shaft, a stirring assembly is fixedly installed at the driving end of the electric push rod, a serpentine tube is fixedly inserted on one side of the boiler main body, the other end of the serpentine tube is fixedly inserted on one side of the wind collecting box, the wind collecting box is connected with the boiler main body through the serpentine tube, a blade is fixedly installed on the rotating shaft, the blade is located inside the wind collecting box, an exhaust pipe is fixedly inserted on the end of the wind collecting box away from the serpentine tube, a one-way air intake valve is arranged on one side of the boiler main body, and the one-way air intake valve is connected with the inside of the boiler main body.

[0008] Furthermore, there are multiple blades, and the multiple blades are fixedly installed around the outer side of the rotating shaft with equal intervals.

[0009] Furthermore, a bearing is fixedly installed at the center of the inner top wall of the boiler body, and the rotating shaft is fixedly inserted in the inner ring of the bearing.

[0010] Furthermore, the stirring assembly includes a stirring shaft, which is fixedly mounted on the driving end of the electric push rod, and a plurality of stirring rods are fixedly mounted on both sides of the stirring shaft.

[0011] Furthermore, an air pump is fixedly installed on one side of the boiler body, a connecting pipe is fixedly installed on the air outlet end of the air pump, a cavity is opened in the serpentine pipe, and the other end of the connecting pipe is fixedly plugged on the serpentine pipe and extends into the cavity.

[0012] Furthermore, a sealing plate is slidably arranged in the evaporating dish, a supporting spring is fixedly installed at the bottom of the sealing plate, a contact block is fixedly installed at the center of the bottom of the sealing plate, an electromagnetic button is fixedly installed at the center of the bottom wall of the evaporating dish, the contact block cooperates with the electromagnetic button to abut against each other, and the electromagnetic button is electrically connected to the vacuum pump.

[0013] Furthermore, the number of the support springs is two, and the two support springs are symmetrically fixedly installed on both sides of the bottom of the sealing plate.

[0014] Furthermore, a fixing opening is provided on the front side of the boiler body, and a blocking cover is hingedly connected to the front side of the boiler body, and the blocking cover abuts against the fixing opening.

[0015] Furthermore, a pin shaft is arranged on the front side of the boiler body, and the blocking cover is rotatably sleeved on the pin shaft. There are two pin shafts, and the two pin shafts are symmetrically arranged on the front side of the boiler body.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: in the process of heating and concentrating the sugarcane juice, water vapor will be introduced into the wind collecting box through the serpentine tube, and push the blades to drive the rotating shaft, the electric push rod and the stirring rod to rotate, and then by turning on the electric push rod, the driving end of the electric push rod can be extended to drive the stirring rod to move downward to the inside of the evaporating dish, so as to stir the sugarcane juice in the evaporating dish and accelerate the evaporation rate of the sugarcane juice. In addition, the rotation of the stirring rod can rely on the thrust of the water vapor movement as a driving source, without consuming additional electric energy, thereby achieving the effect of recycling the exhaust gas generated in the boiler body and reducing the processing cost.

[0017] Compared with the prior art, the beneficial effect of the present invention is that when a large amount of sugarcane juice exists in the evaporating dish, the vacuum pump can be turned on to allow the vacuum pump to suck outside air into the cavity through the connecting pipe, so that the serpentine tube expands, and then the channel in the serpentine tube shrinks. Since the cross-sectional area of ​​the channel in the serpentine tube is reduced, while the flow rate of the gas remains unchanged, the flow rate of the gas will increase, and the thrust generated by the accelerated water vapor will also increase, so that the blades can be normally driven to rotate, thereby improving the use effect.

[0018] Compared with the prior art, the beneficial effect of the present invention is that when a large amount of sugarcane juice is injected into the evaporating dish, the sealing plate will be pressed to slide downward and compress the supporting spring. At this time, the contact block will contact the electromagnetic button, indicating that there is a lot of sugarcane juice in the evaporating dish. At this time, the electromagnetic button can start the vacuum pump, so that the vacuum pump can inject a certain amount of air into the cavity, thereby achieving the effect of adaptively adjusting the size of the channel in the serpentine tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the front exterior of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the front inner half-section of the present invention;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the outer side of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention, viewed from above and half-cut inside.

[0023] Figure 5 The figure is a three-dimensional structural schematic diagram of a half-section view of the interior of an evaporating dish of the present invention.

[0024] Figure 6 For the present invention Figure 2 Enlarged view of point A in the middle.

[0025] In the figure: 1. boiler body; 2. evaporating dish; 3. wind collecting box; 4. rotating shaft; 5. electric push rod; 6. serpentine pipe; 7. blades; 8. exhaust pipe; 9. one-way air inlet valve; 10. bearing; 11. stirring shaft; 12. stirring rod; 13. vacuum pump; 14. connecting pipe; 15. cavity; 16. sealing plate; 17. supporting spring; 18. contact block; 19. electromagnetic button; 20. pin shaft; 21. blocking cover. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figure 1-6The present invention provides a technical solution: a flue gas recovery and utilization device for a sugarcane processing boiler, comprising a boiler body 1, an evaporating dish 2 is arranged at the center of the bottom wall of the boiler body 1, a wind collecting box 3 is fixedly installed at the center of the top of the boiler body 1, a rotating shaft 4 is rotatably arranged on the top wall of the boiler body 1, the top of the rotating shaft 4 extends into the wind collecting box 3, an electric push rod 5 is fixedly installed at the bottom end of the rotating shaft 4, a stirring assembly is fixedly installed at the driving end of the electric push rod 5, a serpentine tube 6 is fixedly inserted at one side of the boiler body 1, the other end of the serpentine tube 6 is fixedly inserted at one side of the wind collecting box 3, the wind collecting box 3 and the boiler body 1 are connected through the serpentine tube 6, a blade 7 is fixedly installed on the rotating shaft 4, the blade 7 is located inside the wind collecting box 3, an end of the wind collecting box 3 away from the serpentine tube 6 is fixedly inserted with an exhaust pipe 8, a one-way air intake valve 9 is arranged at one side of the boiler body 1, and the one-way air intake valve 9 is connected to the inside of the boiler body 1;

[0030] The stirring assembly includes a stirring shaft 11, which is fixedly installed on the driving end of the electric push rod 5. A plurality of stirring rods 12 are fixedly installed on both sides of the stirring shaft 11. A fixing opening is opened on the front side of the boiler body 1. A blocking cover 21 is hinged on the front side of the boiler body 1. The blocking cover 21 is against the fixing opening. A pin shaft 20 is arranged on the front side of the boiler body 1. The blocking cover 21 is rotatably sleeved on the pin shaft 20. There are two pin shafts 20, and the two pin shafts 20 are symmetrically arranged on the front side of the boiler body 1.

[0031] During the specific implementation, the blocking cover 21 is first opened, and then the sugarcane juice is poured into the evaporating dish 2, and then the evaporating dish 2 is heated, so that the sugarcane juice in the evaporating dish 2 absorbs heat and evaporates to generate water vapor, and the sugarcane juice in the evaporating dish 2 can be concentrated and processed, and then the water vapor is introduced into the air collecting box 3 through the serpentine tube 6, and then the water vapor pushes the blade 7 to drive the rotating shaft 4, the electric push rod 5 and the stirring rod 12 to rotate, and at the same time, the electric push rod 5 is turned on, so that the driving end of the electric push rod 5 is extended to drive the stirring rod 12 to move downward to the inside of the evaporating dish 2, so that the sugarcane juice in the evaporating dish 2 can be stirred, and the evaporation rate of the sugarcane juice can be accelerated. In addition, the rotation of the stirring rod 12 can rely on the thrust of the water vapor movement as a driving source, without consuming additional electric energy, so that the exhaust gas generated in the boiler body 1 is recycled and utilized, and the processing cost is reduced.

[0032] For the serpentine tube 6, we can fix a clamp on one side of the boiler body 1 and clamp the clamp on the serpentine tube 6. The serpentine tube 6 can be fixedly installed on one side of the boiler body 1. Since water vapor will generate vibration when entering the serpentine tube 6, the setting of the clamp can improve the stability of the serpentine tube 6 when it is used.

[0033] In addition, in order to improve the sealing performance of the sealing plate 16 in the evaporating dish 2, we can install a sealing ring on the outer side of the sealing plate 16 to improve its sealing performance and prevent sugarcane juice from penetrating through the sealing plate 16 into the bottom of the sealing plate 16. We can also set the sealing ring to be made of fluororubber. Since fluororubber has good heat resistance, the sealing ring can be used normally at high temperatures.

[0034] For heating the evaporating dish 2, a heating plate may be provided at the bottom of the boiler body 1, and an electric heating wire may be embedded in the heating plate so that the electric heating wire contacts the evaporating dish 2, and then the electric heating wire is turned on to heat the evaporating dish 2. Since the electric heating wire and the boiler body 1 are both prior arts, no further explanation will be given.

[0035] See also Figure 1-6 As shown, the number of blades 7 is multiple, and multiple blades 7 are fixedly installed around the outer periphery of the rotating shaft 4 at equal intervals. The arrangement of multiple blades 7 can increase the area of ​​contact between water vapor and the rotating shaft 4, thereby ensuring the normal rotation of the rotating shaft 4.

[0036] See also Figure 1-6 A bearing 10 is fixedly installed at the center of the top wall of the boiler body 1, and the rotating shaft 4 is fixedly inserted in the inner ring of the bearing 10. The rotating shaft 4 can be reasonably rotated and installed in the boiler body 1 and the air collecting box 3 to avoid the problem of motion interference.

[0037] See also Figure 1-6 A vacuum pump 13 is fixedly installed on one side of the boiler body 1, and a connecting pipe 14 is fixedly installed on the air outlet end of the vacuum pump 13. A cavity 15 is opened in the serpentine pipe 6. The other end of the connecting pipe 14 is fixedly plugged into the serpentine pipe 6 and extends into the cavity 15.

[0038] In specific implementation, based on the above implementation, when there is a large amount of sugarcane juice in the evaporating dish 2, the steam transported from the serpentine tube 6 to the air collecting box 3 is not sufficient to drive the blades 7 to move. At this time, the vacuum pump 13 is turned on to allow the vacuum pump 13 to suck the outside air into the cavity 15 through the connecting pipe 14, so that the serpentine tube 6 expands, and then the channel in the serpentine tube 6 shrinks. Since the cross-sectional area of ​​the channel in the serpentine tube 6 is reduced, while the flow rate of the gas remains unchanged, the flow rate of the gas will increase, and the thrust generated by the accelerated water vapor will also increase, so that the blades 7 can be normally driven to rotate, thereby improving the use effect.

[0039] See also Figure 1-6 A sealing plate 16 is slidably provided in the evaporating dish 2, a supporting spring 17 is fixedly installed at the bottom of the sealing plate 16, a contact block 18 is fixedly installed at the center of the bottom of the sealing plate 16, an electromagnetic button 19 is fixedly installed at the center of the bottom wall of the evaporating dish 2, the contact block 18 and the electromagnetic button 19 cooperate to abut against each other, and the electromagnetic button 19 is electrically connected to the vacuum pump 13.

[0040] In specific implementation, based on the above implementation, when a large amount of sugarcane juice is injected into the evaporating dish 2, the sealing plate 16 will be pressed to slide downward and compress the supporting spring 17. At this time, the contact block 18 will contact the electromagnetic button 19, which indicates that there is a lot of sugarcane juice in the evaporating dish 2. At this time, the electromagnetic button 19 can turn on the vacuum pump 13, so that the vacuum pump 13 can inject a certain amount of air into the cavity 15, thereby achieving the effect of adaptively adjusting the channel size in the serpentine tube 6.

[0041] The number of the supporting springs 17 is two, and the two supporting springs 17 are symmetrically fixedly mounted on both sides of the bottom of the sealing plate 16. The arrangement of the two blades 7 can ensure the balance of both sides of the bottom of the sealing plate 16, and avoid the problem of the sealing plate 16 being tilted.

[0042] Working principle: Before use, it is necessary to connect all the electrical appliances inside and outside the boiler body 1 to an external power supply, or install an electrical box on the boiler body 1 in an area that does not interfere with other components, and then connect the electrical box to the electrical appliances through lines to supply power to the electrical appliances, thereby ensuring the normal operation of the electrical appliances. Since connecting an external power supply to the electrical appliances or setting up an electrical box to supply power are both existing technologies and are not problems that need to be solved in the background technology of this specification, they will not be explained in detail.

[0043] When in use, first open the blocking cover 21, then pour the sugarcane juice into the evaporating dish 2, and then heat the evaporating dish 2 so that the sugarcane juice in the evaporating dish 2 absorbs heat and evaporates to generate water vapor, so that the sugarcane juice in the evaporating dish 2 can be concentrated and processed, and then the water vapor is introduced into the air collecting box 3 through the serpentine tube 6, and then the water vapor pushes the blades 7 to drive the rotating shaft 4, the electric push rod 5 and the stirring rod 12 to rotate, and at the same time, the electric push rod 5 is turned on, so that the driving end of the electric push rod 5 is extended to drive the stirring rod 12 to move downward to the inside of the evaporating dish 2, so that the sugarcane juice in the evaporating dish 2 can be stirred, and the evaporation rate of the sugarcane juice can be accelerated. In addition, the rotation of the stirring rod 12 can rely on the thrust of the water vapor movement as a driving source, without consuming additional electrical energy, so as to achieve the effect of recycling the exhaust gas generated in the boiler body 1 and reduce the processing cost. It should be noted that since the electric push rod 5 needs to be turned on frequently, there is no need to worry about energy consumption.

[0044] On the basis of the above operation, when there is a large amount of sugarcane juice in the evaporating dish 2, the steam transported from the serpentine tube 6 to the air collecting box 3 is not enough to drive the blades 7 to move. At this time, the vacuum pump 13 is turned on to allow the vacuum pump 13 to suck the outside air into the cavity 15 through the connecting pipe 14, so that the serpentine tube 6 expands, and then the channel in the serpentine tube 6 shrinks. Since the cross-sectional area of ​​the channel in the serpentine tube 6 is reduced, while the flow rate of the gas remains unchanged, the flow rate of the gas will increase, and the thrust generated by the accelerated water vapor will also increase, so that the blades 7 can be normally driven to rotate, thereby improving the use effect.

[0045] In addition, during the above operation, when a large amount of sugarcane juice is injected into the evaporating dish 2, the sealing plate 16 will be pressed to slide downward and compress the supporting spring 17. At this time, the contact block 18 will contact the electromagnetic button 19, which indicates that there is a lot of sugarcane juice in the evaporating dish 2. At this time, the electromagnetic button 19 can turn on the vacuum pump 13, so that the vacuum pump 13 can inject a certain amount of air into the cavity 15, thereby achieving the effect of adaptively adjusting the size of the channel in the serpentine tube 6.

[0046] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A flue gas recovery and utilization device for a sugarcane processing boiler, comprising a boiler body (1), wherein an evaporation dish (2) is arranged at the center of the inner bottom wall of the boiler body (1), characterized in that: A wind collecting box (3) is fixedly installed at the center of the top of the boiler body (1); a rotating shaft (4) is rotatably arranged on the top wall of the boiler body (1); the top end of the rotating shaft (4) extends into the wind collecting box (3); an electric push rod (5) is fixedly installed at the bottom end of the rotating shaft (4); a stirring assembly is fixedly installed at the driving end of the electric push rod (5); a serpentine tube (6) is fixedly inserted on one side of the boiler body (1); the other end of the serpentine tube (6) is fixedly inserted on one side of the wind collecting box (3); the wind collecting box (3) and the boiler body (1) are connected through the serpentine tube (6); a blade (7) is fixedly installed on the rotating shaft (4); the blade (7) is located inside the wind collecting box (3); an exhaust pipe (8) is fixedly inserted on one end of the wind collecting box (3) away from the serpentine tube (6); a one-way air intake valve (9) is arranged on one side of the boiler body (1); the one-way air intake valve (9) is connected to the inside of the boiler body (1).

2. A device for recovering flue gas from a boiler for sugarcane processing as claimed in claim 1, characterized in that: The number of the blades (7) is plural, and the blades (7) are fixedly mounted at equal intervals around the outer periphery of the rotating shaft (4).

3. A device for recovering flue gas from a boiler for sugarcane processing as claimed in claim 1, characterized in that: A bearing (10) is fixedly installed at the center of the inner top wall of the boiler body (1), and the rotating shaft (4) is fixedly inserted into the inner ring of the bearing (10).

4. A device for recovering flue gas from a boiler for sugarcane processing as claimed in claim 1, characterized in that: The stirring assembly comprises a stirring shaft (11), wherein the stirring shaft (11) is fixedly mounted on the driving end of the electric push rod (5), and a plurality of stirring rods (12) are fixedly mounted on both sides of the stirring shaft (11).

5. A device for recovering flue gas from a boiler for sugarcane processing as claimed in claim 1, characterized in that: An air extraction pump (13) is fixedly mounted on one side of the boiler body (1), a connecting pipe (14) is fixedly mounted on the air outlet end of the air extraction pump (13), a cavity (15) is provided in the serpentine pipe (6), and the other end of the connecting pipe (14) is fixedly plugged into the serpentine pipe (6) and extends into the cavity (15).

6. A device for recovering flue gas from a boiler for sugarcane processing as claimed in claim 1, characterized in that: A sealing plate (16) is slidably arranged inside the evaporating dish (2), a supporting spring (17) is fixedly installed at the bottom of the sealing plate (16), a contact block (18) is fixedly installed at the center of the bottom of the sealing plate (16), an electromagnetic button (19) is fixedly installed at the center of the inner bottom wall of the evaporating dish (2), the contact block (18) and the electromagnetic button (19) cooperate to abut against each other, and the electromagnetic button (19) is electrically connected to the vacuum pump (13).

7. A device for recovering flue gas from a boiler for sugarcane processing as claimed in claim 6, characterized in that: The number of the support springs (17) is two, and the two support springs (17) are symmetrically fixedly mounted on both sides of the bottom of the sealing plate (16).

8. The device for recycling flue gas from a boiler for sugarcane processing as claimed in claim 1, characterized in that: A fixing opening is provided on the front side of the boiler body (1), and a blocking cover (21) is hingedly connected to the front side of the boiler body (1), wherein the blocking cover (21) abuts against the fixing opening.

9. A device for recovering flue gas from a boiler for sugarcane processing as claimed in claim 8, characterized in that: A pin shaft (20) is arranged on the front side of the boiler body (1), and the blocking cover (21) is rotatably sleeved on the pin shaft (20). There are two pin shafts (20), and the two pin shafts (20) are symmetrically arranged on the front side of the boiler body (1).

Images