CN215234249U

CN215234249U - SCR catalyst regenerator

Info

Publication number: CN215234249U
Application number: CN202121433901.1U
Authority: CN
Inventors: 庞伟; 盖旭光; 杨美抱; 唐超; 王亚飞; 赵坚; 张加鹏; 曹金房
Original assignee: Everbright Environmental Energy Haiyan Co ltd
Current assignee: Everbright Environmental Energy Haiyan Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-21
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a SCR catalyst regeneration stove, including the stove outer covering, be equipped with feed arrangement in the stove outer covering, stove outer covering and feed arrangement cooperation, be equipped with constant temperature heating device in the stove outer covering, constant temperature heating device includes automatic temperature control device, electrothermal tube, mounting groove and stationary blade, the mounting groove is located inside the stove outer covering, the electrothermal tube is the spiral, electrothermal tube and mounting groove cooperation, the stationary blade both ends are equipped with the connecting hole, the stationary blade passes through the connecting hole and is connected with the mounting groove, automatic temperature control device is connected with the mounting groove, the electrothermal tube receives automatic temperature control device control, has solved the interior temperature control problem of regeneration stove for constant temperature regeneration catalyst in the regeneration stove.

Description

SCR catalyst regenerator

Technical Field

The utility model relates to a regenerator technical field, in particular to SCR catalyst regenerator.

Background

At present, the commercial SCR catalyst basically takes TiO2 as a carrier, V2O5 as a main active component and WO3 and MoO3 as antioxidant and antitoxic auxiliary components. The catalyst types can be divided into three types: plate, honeycomb, and corrugated plate.

The activity of the catalyst gradually decreases over time, and the time during which the activity decreases is commonly referred to as the "life" of the catalyst. The process of catalyst activity and selectivity decline, also referred to as catalyst "aging". The reasons for catalyst deactivation are many, and the research on catalyst deactivation is of great significance to the research and practice of catalytic theory. When the activity of the catalyst is lowered to deteriorate its performance to a certain extent, the catalyst should be replaced.

The temperature in the current regeneration furnace ubiquitous is unstable, appears temperature fluctuation, leads to among the catalyst regeneration process because the temperature reason leads to regeneration efficiency and effect not good, influences regeneration effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a SCR catalyst regeneration stove, the device can keep the interior constant temperature of stove, and the catalyst regeneration of being convenient for can not appear the temperature fluctuation and lead to the catalyst deactivation.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a SCR catalyst regeneration stove, includes the stove outer covering, be equipped with feed arrangement in the stove outer covering, the stove outer covering cooperates with feed arrangement, be equipped with constant temperature heating device in the stove outer covering, constant temperature heating device includes automatic temperature control device, electrothermal tube, mounting groove and stationary blade, the mounting groove is located the stove outer covering inside, the electrothermal tube is the spiral, electrothermal tube and mounting groove cooperation, the stationary blade both ends are equipped with the connecting hole, the stationary blade passes through the connecting hole and is connected with the mounting groove, automatic temperature control device is connected with the mounting groove, the electrothermal tube receives automatic temperature control device control.

Adopt above-mentioned technical scheme, the electrothermal tube is installed in the mounting groove, and the stationary blade is used for sealing the mounting groove and prevents that the electrothermal tube from dropping, conveniently takes off again, is convenient for change the electrothermal tube, and automatic temperature control device controls the electrothermal tube heat production efficiency, with furnace temperature control at catalyst regeneration's temperature, the spiral electrothermal tube can wider range heated air and control the heat production volume, is convenient for control furnace temperature.

Preferably, the furnace shell comprises a top, a rear and two sides, hinges are arranged on the two sides of the furnace shell, the hinges are rotatably connected with a furnace door, a rocker is rotatably connected on the furnace door, a claw is fixedly connected in the middle of the rocker, and the furnace door is matched with the furnace shell.

By adopting the technical scheme, the door opening and closing are controlled through the hinge rotary furnace door, and the rocker is controlled by the claw control hand to rotate to control the locking and the opening of the furnace door.

Preferably, the bottom of the furnace shell is provided with a connecting hole, and a fixed rail is detachably connected to the connecting hole.

Preferably, the feeding device comprises a bottom plate and an electric trolley, the bottom plate is driven by the electric trolley, the electric trolley comprises a driving mechanism, a chain wheel, a chain and a cast steel travelling wheel, the cast steel travelling wheel is positioned at the bottom of the bottom plate, the chain is driven by the driving mechanism, the driving mechanism is fixedly connected with the furnace shell, the chain wheel is matched with the chain, and the chain wheel is fixedly connected with the cast steel travelling wheel.

By adopting the technical scheme, the driving mechanism drives the chain to rotate, and the chain drives the cast steel travelling wheel, so that the driving mechanism controls the cast steel travelling wheel to move forwards or backwards on the fixed rail through forward and reverse rotation.

Preferably, the two sides of the furnace shell are provided with feed chutes, and the feed chutes are matched with the bottom plate.

Preferably, an inner lining layer is fixedly connected in the furnace shell.

Preferably, a fan is arranged at the top of the furnace shell, an air inlet pipe is arranged below the fan, the fan is fixedly connected with the furnace shell through the air inlet pipe, and the air inlet pipe penetrates through the furnace shell and enters the interior of the furnace shell.

By adopting the technical scheme, the fan extracts natural air, the natural air enters the constant-temperature heating device through the air inlet pipe, is heated to a certain temperature and then enters the catalyst regeneration area for catalyst regeneration.

Preferably, an air volume valve is fixedly connected in the air inlet pipe.

By adopting the technical scheme, the air volume valve can control the air inlet volume of the air inlet.

Preferably, the bottom of the side surface of the furnace shell is provided with an air outlet.

Preferably, the rear part of the furnace shell is provided with an escalator, and the escalator is fixedly connected with the furnace shell.

Drawings

Fig. 1 is a perspective view of an embodiment of the utility model;

fig. 2 is a front view of the utility model;

fig. 3 is a side sectional view of the utility model.

Reference numerals: 1. a furnace shell; 2. a feeding device; 3. a constant temperature heating device; 4. an automatic temperature control device; 5. an electric heating tube; 6. mounting grooves; 7. a fixing sheet; 8. connecting holes; 9. a fixed rail; 10. a hinge; 11. a furnace door; 12. a rocker; 13. controlling the hand by using a goat horn; 14. a base plate; 15. an electric trolley; 16. a drive mechanism; 17. a sprocket; 18. a chain; 19. casting a steel travelling wheel; 20. a feed chute; 21. an inner liner layer; 22. a fan; 23. an air inlet pipe; 24. an air volume valve; 25. an air outlet; 26. an escalator.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

Referring to the first to third figures, the SCR catalyst regeneration furnace comprises a furnace shell 1, a feeding device 2 is arranged in the furnace shell 1, the furnace shell 1 is matched with the feeding device 2, the feeding device 2 comprises a bottom plate 14 and an electric trolley 15, feeding grooves 20 are arranged on two sides of the furnace shell 1, the feeding grooves 20 are matched with the bottom plate 14, the bottom plate 14 is driven by the electric trolley 15, the electric trolley 15 comprises a driving mechanism 16, a chain wheel 17, a chain 18 and a cast steel travelling wheel 19, the cast steel travelling wheel 19 is positioned at the bottom of the bottom plate 14, the chain 18 is driven by the driving mechanism 16, the driving mechanism 16 is fixedly connected with the furnace shell 1, the chain wheel 17 is matched with the chain 18, the chain wheel 17 is fixedly connected with the cast steel travelling wheel 19, the driving mechanism 16 drives the chain 18 to rotate, the chain 18 is transmitted to the cast steel travelling wheel 19, and the driving mechanism 16 controls the cast steel travelling wheel 19 to move forwards or backwards on a fixed rail 9 through forward and backward rotation.

The inner lining layer 21 is fixedly connected in the furnace shell 1, the fan 22 is arranged at the top of the furnace shell 1, the air inlet pipe 23 is arranged below the fan 22, the fan 22 is fixedly connected with the furnace shell 1 through the air inlet pipe 23, the air inlet pipe 23 penetrates through the furnace shell 1 to enter the furnace shell 1, and the fan 22 extracts natural air, enters the constant-temperature heating device 3 through the air inlet pipe 23, heats the air to a certain temperature and then enters the catalyst regeneration zone to regenerate the catalyst. An air volume valve 24 is fixedly connected in the air inlet pipe 23, and the air volume valve 24 can control the air inlet volume of the air inlet. A constant temperature heating device 3 is arranged in the furnace shell 1, the constant temperature heating device 3 comprises an automatic temperature control device 4 and an electric heating tube 5, mounting groove 6 and stationary blade 7, mounting groove 6 is located 1 inside of stove outer covering, electrothermal tube 5 is the spiral, electrothermal tube 5 and the cooperation of mounting groove 6, 7 both ends of stationary blade are equipped with connecting hole 8, stationary blade 7 is connected with mounting groove 6 through connecting hole 8, automatic temperature control device 4 is connected with mounting groove 6, electrothermal tube 5 receives automatic temperature control device 4 control, electrothermal tube 5 is installed in mounting groove 6, stationary blade 7 is used for sealing mounting groove 6 and prevents that electrothermal tube 5 from dropping, conveniently take off again, be convenient for change electrothermal tube 5, automatic temperature control device 4 controls 5 heat production efficiencies of electrothermal tube, with the temperature control in catalyst regeneration's temperature, spiral electrothermal tube 5 can be more extensive heated air and control heat production volume, be convenient for control the interior temperature of stove.

The bottom of the side surface of the furnace shell 1 is provided with an air outlet 25, the rear part of the furnace shell 1 is provided with a staircase 26, and the staircase 26 is fixedly connected with the furnace shell 1.

A workpiece to be heated is conveyed into the furnace through the moving platform, the heating box and the furnace door 11 are sealed by adopting a graphite plate root, a gate is closed, electric heating is started, meanwhile, a fan 22 is started for hot air circulation, waste gas is discharged by utilizing positive pressure of the fan 22, and the heating effect is achieved after the set heating time; the regeneration furnace extracts clean air through the fan 22, and sends the clean air into the regeneration furnace through the pipeline, sets up corresponding electric heater and heats the air to about 400 ℃ and gets into the regeneration furnace, and the regeneration furnace fully considers the contact of circulated air and catalyst, improves energy utilization. A path of exhaust port is arranged on the flue, and the circulating hot gas generated by the catalyst is continuously discharged into the inlet flue of the semi-dry method tower through the exhaust fan 22 for tail gas treatment, so that the generated circulating air is prevented from being directly discharged into the atmosphere to cause environmental pollution. The fan 22 continuously supplements corresponding natural wind to the regenerator to keep the thermal circulation gas quantity in the regenerator unchanged. The regenerated air is supplied with air and exhausted by adopting an adjusting valve, and the air supply amount and the air exhaust amount can be adjusted according to the actual operation condition in operation. The exhaust duct is provided with electric tracing to ensure that the flue gas can not be condensed to corrode the duct in the transmission process.

Utility model theory of operation: fan 22 extracts natural wind and enters into the inside constant temperature heating device 3 of stove outer covering 1 through the intake pipe in, the electrothermal tube 5 in the mounting groove 6 heats and carries out catalyst regeneration in entering into feed arrangement 2 after specific temperature by constant temperature heating device 3, automatic temperature control device 4 controls electrothermal tube 5 heating power simultaneously, keep the stove in constant temperature, connecting hole 8 that stationary blade 7 passes through both ends is fixed in the mounting groove 6 outside, prevent that electrothermal tube 5 from dropping also conveniently changing electrothermal tube 5 in mounting groove 6, spiral electrothermal tube 5 generates heat evenly.

Claims

1. An SCR catalyst regeneration furnace comprises a furnace shell (1) and is characterized in that a feeding device (2) is arranged in the furnace shell (1), the furnace shell (1) is matched with the feeding device (2), a constant temperature heating device (3) is arranged in the furnace shell (1), the constant temperature heating device (3) comprises an automatic temperature control device (4), an electric heating tube (5), a mounting groove (6) and a fixing piece (7), the mounting groove (6) is positioned inside the furnace shell (1), the electric heating tube (5) is spiral, the electric heating tube (5) is matched with the mounting groove (6), connecting holes (8) are arranged at two ends of the fixing piece (7), the fixing piece (7) is connected with the mounting groove (6) through a connecting hole (8), the automatic temperature control device (4) is connected with the mounting groove (6), and the electric heating tube (5) is controlled by the automatic temperature control device (4).

2. The SCR catalyst regeneration furnace of claim 1, wherein the furnace shell (1) is provided with a connecting hole (8) at the bottom, and a fixed rail (9) is detachably connected to the connecting hole (8).

3. The SCR catalyst regeneration furnace of claim 2, wherein the furnace shell (1) comprises a top, a rear and two sides, two sides of the furnace shell (1) are provided with hinges (10), the hinges (10) are rotatably connected with a furnace door (11), the furnace door (11) is rotatably connected with a rocker (12), the middle part of the rocker (12) is fixedly connected with a claw handle (13), and the furnace door (11) is matched with the furnace shell (1).

4. An SCR catalyst regeneration furnace according to claim 3, characterized in that the feeding device (2) comprises a bottom plate (14) and an electric trolley (15), the bottom plate (14) is driven by the electric trolley (15), the electric trolley (15) comprises a driving mechanism (16), a chain wheel (17), a chain (18) and a cast steel traveling wheel (19), the cast steel traveling wheel (19) is located at the bottom of the bottom plate (14), the chain (18) is driven by the driving mechanism (16), the driving mechanism (16) is fixedly connected with the furnace shell (1), the chain wheel (17) is matched with the chain (18), and the chain wheel (17) is fixedly connected with the cast steel traveling wheel (19).

5. An SCR catalyst regeneration furnace according to claim 4, characterized in that the furnace shell (1) is provided with feed channels (20) on both sides, said feed channels (20) cooperating with the bottom plate (14).

6. An SCR catalyst regeneration furnace according to claim 5, characterized in that an inside lining (21) is fixedly connected inside the furnace shell (1).

7. The SCR catalyst regeneration furnace of claim 6, wherein a fan (22) is arranged on the top of the furnace shell (1), an air inlet pipe (23) is arranged below the fan (22), the fan (22) is fixedly connected with the furnace shell (1) through the air inlet pipe (23), and the air inlet pipe (23) penetrates through the furnace shell (1) and enters the furnace shell (1).

8. The SCR catalyst regeneration furnace of claim 7, wherein an air volume valve (24) is fixedly connected in the air inlet pipe (23).

9. The SCR catalyst regeneration furnace of claim 8, wherein the furnace shell (1) is provided with an air outlet (25) at the bottom of the side surface.

10. The SCR catalyst regeneration furnace of claim 9, wherein a staircase (26) is arranged behind the furnace shell (1), and the staircase (26) is fixedly connected with the furnace shell (1).