CN112179142A

CN112179142A - Energy-concerving and environment-protective three-way catalyst ceramic sintering device

Info

Publication number: CN112179142A
Application number: CN201910601074.3A
Authority: CN
Inventors: 杨广乾
Original assignee: Jiangsu Wanluda Environmental Technology Co ltd
Current assignee: Jiangsu Wanluda Environmental Technology Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2021-01-05

Abstract

The invention discloses an energy-saving and environment-friendly three-way catalyst ceramic sintering device which comprises a sintering furnace, a glue discharging furnace and a gas recovery pipeline, wherein the sintering furnace comprises a shell, the shell is arranged on a base, a furnace door is arranged on the outer wall of the shell, a handle is arranged on the furnace door, a heat-preservation and heat-insulation layer is arranged on the inner wall of the shell, an inner furnace is arranged inside the shell, a heating pipe is arranged between the inner furnace and the heat-preservation and heat-insulation layer, a radiating fin is arranged on the heating pipe, one end of the inner furnace is communicated with a feeding pipe, a cooling water pipe is wound on the outer wall of the inner furnace, one end of the cooling water pipe penetrates through the heat-preservation and heat-insulation layer and the shell to be connected with a. The invention can heat the furnace in the sintering furnace more quickly and uniformly by arranging the radiating fins on the heating pipe, improves the quality of sintered products, and can reduce the temperature in the furnace better and more quickly during cooling by arranging the cooling water pipe.

Description

Energy-concerving and environment-protective three-way catalyst ceramic sintering device

Technical Field

The invention relates to the technical field of sintering equipment, in particular to an energy-saving and environment-friendly three-way catalyst ceramic sintering device.

Background

The three-way catalyst ceramic is a porous ceramic material installed in a three-way catalyst, and the surface of the ceramic is covered with a layer of precious metal such as platinum, rhodium, palladium and the like, so that HC and CO in exhaust gas can be changed into water and CO2, and NOx can be decomposed into nitrogen and oxygen. The three-way catalyst is mostly arranged on the automobile and used for purifying the tail gas of the automobile.

The sintering device is a furnace which can make the ceramic green body solid particles mutually bonded at high temperature, the crystal grains grow up, the gaps and the crystal boundaries gradually decrease, the total volume is shrunk and the density is increased through the transmission of substances, and finally, the furnace becomes a compact polycrystalline sintering body with a certain microstructure, and is one of key devices in the whole three-way catalyst ceramic production process flow. When the traditional three-way catalyst ceramic sintering furnace is used for sintering, the local sintering temperature cannot be accurately controlled, the heat preservation capability is poor, heat is easy to dissipate in the sintering process, and great development obstruction is brought to the development of the three-way catalyst ceramic process. Meanwhile, when the conventional sintering device finishes sintering the three-way catalyst ceramic, natural cooling or water spraying cooling is adopted, and the conventional sintering device have the defects. The natural cooling needs long time and has low efficiency. Therefore, an energy-saving and environment-friendly three-way catalyst ceramic sintering device is urgently needed.

Disclosure of Invention

In view of the problems in the prior art, the invention aims to provide an energy-saving and environment-friendly three-way catalyst ceramic sintering device.

In order to achieve the purpose, the invention provides the following technical scheme: an energy-saving and environment-friendly three-way catalyst ceramic sintering device comprises a sintering furnace, a glue discharging furnace and a gas recovery pipeline, wherein the sintering furnace comprises a shell, the shell is arranged on a base, a furnace door is arranged on the outer wall of the shell, a handle is arranged on the furnace door, a heat-preserving and heat-insulating layer is arranged on the inner wall of the shell, an inner furnace is arranged inside the shell, a heating pipe is arranged between the inner furnace and the heat-preserving and heat-insulating layer, radiating fins are arranged on the heating pipe, one end of the inner furnace is communicated with a feeding pipe, a cooling water pipe is wound on the outer wall of the inner furnace, one end of the cooling water pipe penetrates through the heat-preserving and heat-insulating layer and the shell to be connected with a circulating pipeline, a water return valve is arranged between the cooling water pipe and the circulating pipeline, the other end of the cooling water pipe, an exhaust pipeline is arranged at the top of the sintering furnace and communicated with one end of a gas recovery pipeline, and the other end of the gas recovery pipeline penetrates through the glue discharging furnace.

Furthermore, the water outlet pipeline is connected with a circulating cooling water pump, the circulating cooling water pump is connected with a water tank through a pipeline, the water tank is connected with a condenser through a pipeline, and the condenser is connected with the circulating pipeline.

Further, a sealing layer is arranged between the oven door and the shell, and the sealing layer is made of rubber materials.

Further, the pipeline part of the gas recovery pipeline penetrating through the glue discharging furnace is provided with a plurality of air release pipelines, and the gas recovery pipeline is provided with a gas quantity regulating valve.

Further, the sintering furnace also comprises a temperature sensor, a temperature display and a controller, wherein the temperature sensor is arranged in the inner furnace, the temperature display is connected with the temperature sensor, and the controller is connected with the heating pipe.

Further, the circulating cooling water pump is electrically connected with a controller, and the controller is electrically connected with a temperature sensor.

Further, an air outlet pipeline is arranged at the bottom of the glue discharging furnace, a first electromagnetic valve is arranged on the air outlet pipeline, and the air outlet pipeline is communicated with the main tower body.

Further, the main tower body is inside from last to having set gradually active carbon filter layer, spray section and congealing water collection section down, the spray section includes a plurality of shower heads, and is a plurality of the shower head sets up the one end at the inlet tube side by side, the pipeline of giving vent to anger set up in the spray section with congeal between the water collection section, the pipeline of giving vent to anger set up in one end in the main tower body is provided with umbrella-type shower nozzle.

Furthermore, a water outlet pipe is arranged at the bottom of the main tower body and communicated with the water pump, a third electromagnetic valve is arranged on the water outlet pipe and positioned between the water outlet pipe and the water pump, the water outlet pipe is respectively communicated with a water supply pipe and a water inlet pipe, and a second electromagnetic valve is arranged on the water inlet pipe.

Compared with the prior art, the energy-saving and environment-friendly three-way catalyst ceramic sintering device has the advantages that the heating fins are arranged on the heating pipe, so that the furnace in the sintering furnace can be heated more quickly and uniformly, the quality of a sintered product is improved, and the cooling water pipe is arranged, so that the temperature in the furnace can be reduced more quickly during cooling; when the sintering is finished, the temperature of the inner furnace is monitored by the temperature sensor, when the temperature of the inner furnace reaches a certain value, the controller controls the circulation cooling water pump to be started, the shell is cooled by heat absorption of water in the water tank, hot water after heat absorption enters the condenser for cooling and then enters the water tank, so that the water can be recycled after cooling, and water resources are saved. The invention can recover the waste heat of the gas and purify the pollutants in the gas, so that the deep recovery of the waste heat of the gas and the gas purification function are integrated together, and the purposes of energy saving and environmental protection are considered; has the advantages of simple structure, convenient operation, etc.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:

FIG. 1 is a schematic structural diagram of an energy-saving and environment-friendly three-way catalyst ceramic sintering device according to the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

fig. 3 is a sectional view taken along the line B-B in fig. 2.

In the figure: 1. sintering furnace; 2. a glue discharging furnace; 3. a gas recovery pipeline; 4. a housing; 5. a heat insulation layer; 6. a handle; 7. a base; 8. an inner furnace; 9. heating a tube; 10. a feed pipe; 11. a cooling water pipe; 12. a circulating cooling water pump; 13. a water return valve; 14. a water outlet valve; 15. a water outlet pipeline; 16. a circulation pipe; 17. a condenser; 18. a water tank; 19. an exhaust duct; 20. an air bleed duct; 21. a gas quantity regulating valve; 22. a vacuum pumping port; 23. a temperature sensor; 24. a temperature display; 25. a controller; 26. a heat sink; 27. a furnace door; 28. a feeding track; 29. an air outlet pipe; 30. a first solenoid valve; 31. a water outlet pipe; 32. an umbrella-shaped spray head; 33. an outlet port; 34. a water inlet pipe; 35. a main tower body; 36. an activated carbon filter layer; 37. a shower head; 38. a spraying section; 39. an overflow pipe; 40. a blow-off pipe; 41. a condensed water collecting section; 42. a second solenoid valve; 43. a water supply pipe; 44. a water pump; 45. and a third solenoid valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an energy-concerving and environment-protective three way catalyst ceramic sintering device, includes fritting furnace 1, binder removal stove 2 and gas recovery pipeline 3, fritting furnace 1 includes shell 4, shell 4 installs on base 7, be provided with furnace gate 27 on the outer wall of shell 4, install handle 6 on the furnace gate 27, be equipped with thermal insulation layer 5 on the inner wall of shell 4, there is interior stove 8 at the internally mounted of shell 4, be equipped with heating pipe 9 between interior stove 8 and the thermal insulation layer 5, be equipped with fin 26 on the heating pipe 9, the one end and the conveying pipe 10 intercommunication of interior stove 8, it has condenser tube 11 to wind on the outer wall of interior stove 8. After the sintering is finished, the cooling water pipe 11 can cool the product, so that the product is prevented from cracking in the cooling process, and the production efficiency and the qualification rate are greatly improved. One end of the cooling water pipe 11 penetrates through the heat insulation layer 5 and the shell 4 to be connected with the circulating pipeline 16, a water return valve 13 is arranged between the cooling water pipe 11 and the circulating pipeline 16, the other end of the cooling water pipe 11 penetrates through the heat insulation layer 5 and the shell 4 to be connected with a water outlet pipeline 15, a water outlet valve 14 is arranged between the cooling water pipe 11 and the water outlet pipeline 15, an exhaust pipeline 19 is arranged at the top of the sintering furnace 1, the exhaust pipeline 19 is communicated with one end of the gas recovery pipeline 3, the other end of the gas recovery pipeline 3 penetrates through the glue discharging furnace 2, and the gas recovery pipeline 3 is made of heat insulation materials.

In this embodiment, the water outlet pipe 15 is connected to a circulating cooling water pump 12, the circulating cooling water pump 12 is connected to a water tank 18 through a pipe, the water tank 18 is connected to a condenser 17 through a pipe, and the condenser 17 is connected to a circulating pipe 16.

In this embodiment, the heat insulating layer 5 is filled with one of aluminum silicate, zirconium oxide, and aluminum oxide.

A sealing layer is arranged between the oven door 27 and the housing 4 in this embodiment, and the sealing layer is made of rubber material.

The gas recovery pipeline 3 in this embodiment is provided with a plurality of gas release pipelines 20 through the pipeline part of the glue discharging furnace 2, and the gas recovery pipeline 3 is provided with a gas amount regulating valve 21.

In this embodiment, the housing 4 is provided with a vacuum port 22, and the vacuum port 22 can be connected to a vacuum device to vacuumize the space between the housing 4 and the inner furnace 8, thereby further reducing heat loss during the sintering process and improving the heat preservation capability.

The sintering furnace 1 in the embodiment further comprises a temperature sensor 23, a temperature display 24 and a controller 25, wherein the temperature sensor 23 is arranged in the inner furnace 8 and is used for detecting the sintering temperature in the inner furnace 8; the temperature display 24 is connected with the temperature sensor 23 and is used for displaying the sintering temperature in the inner furnace 8; the controller 25 is connected to the heating pipe 9, and can adjust the temperature of the heating pipe 9 according to the temperature displayed by the temperature display 24.

The exhaust duct 19 in this embodiment is provided at one end on the wall of the inner furnace 8 and at the other end on the outer shell 4.

In this embodiment, a feeding track 28 is arranged between the sintering furnace 1 and the glue discharging furnace 2, so as to realize continuous glue discharging and sintering of ceramics.

In this embodiment give vent to anger pipeline 29 has been seted up to the bottom of arranging gluey stove 2, it is provided with first solenoid valve 30 on the pipeline of giving vent to anger 29, pipeline of giving vent to anger 35 and main tower body 35 intercommunication, main tower body 35 is inside from last to having set gradually active carbon filter layer 36, shower section 38 and congeal water collection section 41 down, shower section 38 includes a plurality of shower heads 37, and is a plurality of shower head 37 sets up the one end at inlet tube 34 side by side, pipeline of giving vent to anger 29 set up in shower section 38 with congeal between the water collection section 41, pipeline of giving vent to anger 29 set up in one end in the main tower body 35 is provided with umbrella-type shower nozzle.

The bottom of the main tower body 35 is provided with a water outlet pipe 31, the water outlet pipe 31 is communicated with a water pump 44, the water outlet pipe 31 is provided with a third electromagnetic valve 45, the third electromagnetic valve 45 is positioned between the water outlet pipe 31 and the water pump 44, the water outlet pipe 31 is respectively communicated with a water supply pipe 43 and a water inlet pipe 34, and the water inlet pipe 34 is provided with a second electromagnetic valve 42.

In this embodiment, an overflow pipe 39 is provided on the main tower body 35 corresponding to the condensed water collecting section 41, that is, the overflow pipe 39 is provided above the liquid level of the condensed water collecting section 41. When the liquid level in the condensed water collecting section 41 reaches the overflow height, the condensed water is discharged through the overflow pipe 39. After the device is operated for a period of time, the solution needs to be replaced, and the drainage pipe 40 is arranged on the main tower body 35 corresponding to the condensed water collecting section 41, namely the drainage pipe 40 is arranged at the bottom of the main tower body 5. The top of the main tower body 35 is provided with a discharge port 33.

The circulating cooling water pump 12 in this embodiment is electrically connected to a controller 25, and the controller 25 is electrically connected to the temperature sensor 23. When the sintering is finished, the temperature of the inner furnace 8 is monitored by the temperature sensor 23, when the temperature of the inner furnace reaches a certain value, the controller 25 controls the circulation cooling water pump 12 to be started, the water in the water tank 18 absorbs heat for cooling the outer shell 4, and the hot water after absorbing heat enters the condenser 17 for cooling and then enters the water tank 18, so that the water can be recycled after being cooled, and water resources are saved.

When the energy-saving and environment-friendly three-way catalyst ceramic sintering device provided in the embodiment is used, gas inside the glue discharging furnace 2 is uniformly fed into the main tower body 35 through the umbrella-shaped spray head 6, meanwhile, the spray head 37 sprays water particles in a mist shape to cool the gas entering the main tower body 35, the problems that high-temperature gas is directly discharged, certain potential safety hazards exist and equipment is easily damaged are solved, the cooled gas quickly and comprehensively removes dust and particles in the gas through the activated carbon filter layer 36, and finally the gas is discharged through the discharge port 33. The solution in the condensate collecting section 41 is pumped into the water inlet pipe 34 by the water pump 44, so that the solution in the condensate collecting section 41 can be recycled.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an energy-concerving and environment-protective three way catalyst ceramic sintering device, includes fritting furnace (1), binder removal stove (2) and gas recovery pipeline (3), its characterized in that: the sintering furnace (1) comprises a shell (4), the shell (4) is installed on a base (7), a furnace door (27) is arranged on the outer wall of the shell (4), a handle (6) is installed on the furnace door (27), a heat preservation and insulation layer (5) is arranged on the inner wall of the shell (4), an inner furnace (8) is installed inside the shell (4), a heating pipe (9) is arranged between the inner furnace (8) and the heat preservation and insulation layer (5), a radiating fin (26) is arranged on the heating pipe (9), one end of the inner furnace (8) is communicated with a feeding pipe (10), a cooling water pipe (11) is wound on the outer wall of the inner furnace (8), one end of the cooling water pipe (11) penetrates through the heat preservation and insulation layer (5) and the shell (4) to be connected with a circulating pipeline (16), a water return valve (13) is arranged between the cooling water pipe (11) and the circulating pipeline (16), the other end of the cooling water pipe (11) penetrates through the heat-insulating layer (5) and the shell (4) to be connected with the water outlet pipeline (15), a water outlet valve (14) is arranged between the cooling water pipe (11) and the water outlet pipeline (15), an exhaust pipeline (19) is arranged at the top of the sintering furnace (1), the exhaust pipeline (19) is communicated with one end of the gas recovery pipeline (3), and the other end of the gas recovery pipeline (3) penetrates through the glue discharging furnace (2).

2. The energy-saving and environment-friendly three-way catalyst ceramic sintering device according to claim 1, characterized in that: outlet conduit (15) are connected with recirculated cooling water pump (12), recirculated cooling water pump (12) are connected with water tank (18) through the pipeline, water tank (18) are connected with condenser (17) through the pipeline, condenser (17) are connected with circulating line (16).

3. The energy-saving and environment-friendly three-way catalyst ceramic sintering device according to claim 1, characterized in that: a sealing layer is arranged between the oven door (27) and the shell (4), and the sealing layer is made of rubber materials.

4. The energy-saving and environment-friendly three-way catalyst ceramic sintering device according to claim 1, characterized in that: the pipeline part of the gas recovery pipeline (3) penetrating through the glue discharging furnace (2) is provided with a plurality of air release pipelines (20), and the gas recovery pipeline (3) is provided with a gas amount regulating valve (21).

5. The energy-saving and environment-friendly three-way catalyst ceramic sintering device according to claim 1, characterized in that: the sintering furnace (1) further comprises a temperature sensor (23), a temperature display (24) and a controller (25), wherein the temperature sensor (23) is arranged in the inner furnace (8), the temperature display (24) is connected with the temperature sensor (23), and the controller (25) is connected with the heating pipe (9).

6. The energy-saving and environment-friendly three-way catalyst ceramic sintering device according to claim 1, characterized in that: the circulating cooling water pump (12) is electrically connected with a controller (25), and the controller (25) is electrically connected with a temperature sensor (23).

7. The energy-saving and environment-friendly three-way catalyst ceramic sintering device according to claim 1, characterized in that: air outlet pipeline (29) have been seted up to the bottom of binder removal stove (2), be provided with first solenoid valve (30) on air outlet pipeline (29), air outlet pipeline (29) and main tower body (35) intercommunication.

8. The energy-saving and environment-friendly three-way catalyst ceramic sintering device according to claim 1, characterized in that: the main tower body (35) is inside from last to having set gradually activated carbon filter layer (36), spray section (38) and congealing water and collecting section (41) down, spray section (38) are including a plurality of shower heads (37), and are a plurality of shower head (37) set up the one end at inlet tube (34) side by side, give vent to anger pipeline (29) set up in spray section (38) with congeal between water and collect section (41), give vent to anger pipeline (29) set up in one end in main tower body (35) is provided with umbrella-type shower nozzle (32).

9. The energy-saving and environment-friendly three-way catalyst ceramic sintering device according to claim 1, characterized in that: the bottom of the main tower body (35) is provided with a water outlet pipe (31), the water outlet pipe (31) is communicated with a water pump (44), a third electromagnetic valve (45) is arranged on the water outlet pipe (31), the third electromagnetic valve (45) is positioned between the water outlet pipe (31) and the water pump (44), the water outlet pipe (31) is respectively communicated with a water supply pipe (43) and a water inlet pipe (34), and a second electromagnetic valve (42) is arranged on the water inlet pipe (34).