CN211854862U

CN211854862U - Roller kiln process atmosphere adjusting system

Info

Publication number: CN211854862U
Application number: CN202020281835.XU
Authority: CN
Inventors: 谭俊峰; 汪妮思
Original assignee: Hunan Saintly Technology Co ltd
Current assignee: Hunan Saintly Technology Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-11-03
Anticipated expiration: 2030-03-10

Abstract

The utility model discloses a roller kiln process atmosphere adjusting system, the roller kiln comprises a kiln cavity in the kiln body, a transmission mechanism entering the kiln cavity and a box body component arranged on the transmission mechanism and used for containing products, wherein the box body component comprises an air inlet channel which is arranged on the kiln body and communicated to the kiln cavity; the air pumping channel is arranged at the top of the kiln body and used for pumping out process atmosphere; the air inlet channels are arranged on the kiln body in an inverted triangle shape and respectively correspond to two sides and the bottom of the box body component, and the air flow direction of the air inlet channels is opposite to the transmission direction of the box body component. Through setting up the atmosphere with the convection current of product traffic direction, make the temperature in the roller kilns more even, be favorable to the promotion of product sintering quality to inlet channel sets up in the both sides and the bottom of casket body subassembly, and is more even to the processing of casket internal product, can not produce the big condition of casket body subassembly internal product processing quality difference.

Description

Roller kiln process atmosphere adjusting system

Technical Field

The utility model relates to a roller kiln process atmosphere adjustment system belongs to roller kiln equipment field.

Background

The roller kiln is a tunnel kiln which is continuously fired and takes a rotating roller as a green body carrying tool. The product is placed on a plurality of closely spaced horizontal refractory rollers and is transferred from the head to the tail of the kiln by rotation of the rollers. When a product is fired, a process atmosphere needs to be introduced for stable sintering, the flow direction of the traditional process atmosphere is the same as the running direction of the product, and the temperature difference between the upper part and the lower part in the kiln cavity of the roller kiln is large in the sintering process of the product, so that the performance of the product can not meet the requirements easily, for example, the problem of insufficient oxidizability exists.

Chinese utility model patent document with publication number "CN 209926846U" discloses a roller kiln with atmosphere stabilizing function, including a plurality of kiln body (1), a plurality of kiln body (1) connects gradually, its characterized in that: still include heat preservation (12), establish the furnace chamber inner wall at kiln body (1) in heat preservation (12), the both sides of heat preservation (12) are equipped with first inlet port of a plurality of (13) and a plurality of second inlet port (17) respectively, a plurality of first inlet port (13) and a plurality of second inlet port (17) distribute staggering each other. The utility model discloses a path of admitting air to process atmosphere has improved on the basis of traditional roller kilns, sets up the inlet port in the both sides and the bottom of the casket body that holds the product, and nevertheless the atmosphere reheats after getting into the kiln intracavity, does not preheat, influences the product sintering to the atmosphere does not produce relative flow with the product, and the upper and lower temperature in the kiln intracavity is still not even, does not improve the quality of product.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a roller kiln process atmosphere adjustment system, through setting up the atmosphere relative with the product direction to let in the atmosphere to the position of casket body, can effectively solve the inhomogeneous problem of kiln intracavity temperature.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a roller kiln process atmosphere adjusting system comprises a kiln cavity in a kiln body, a transmission mechanism entering the kiln cavity and a box body assembly arranged on the transmission mechanism and used for containing products, wherein the roller kiln comprises an air inlet channel, and the air inlet channel is arranged on the kiln body and communicated to the kiln cavity; the air pumping channel is arranged at the top of the kiln body and used for pumping out process atmosphere; the gas inlet channel is in an inverted triangle and is respectively arranged on the kiln body and respectively corresponds to the two sides and the bottom of the box body component, the gas flow direction of the gas inlet channel is opposite to the transmission direction of the box body component, the gas flow direction is opposite to the product running direction, the convection heat transfer is realized, the product can be sintered better, and the phenomenon of uneven temperature in the roller kiln is avoided.

Preferably, the air inlet channels on the two sides are symmetrically arranged outside the kiln body, the inlet positions correspond to the box body assemblies and are line gaps, the air inlet channel at the bottom is arranged on one side of the kiln body, and the inlet positions correspond to the line gaps of the box body assemblies, so that air can circulate among the box body assemblies, and the condition that the sintering quality of products is unequal is avoided.

Preferably, the air inlet channels are connected with a preheating section for heating process atmosphere, so that the atmosphere is ensured to have a certain temperature in the kiln cavity, and the sintering environment in the roller kiln is not damaged.

Furthermore, the preheating section is made of refractory materials, so that the heating service life of the preheating section is not influenced by heat.

Preferably, the air inlet channel is externally connected with an adjusting assembly, the adjusting assembly comprises an air inlet valve for adjusting flow, the air inlet valve is connected with a flow meter for observing the air inlet flow of atmosphere, personnel can conveniently adjust the air inlet flow through the flow meter, and the convenience of the process atmosphere adjusting system is improved.

Furthermore, the admission valve is the stainless steel ball valve, uses the life-span that the stainless steel ball valve can increase the admission valve.

Preferably, the air exhaust channel is communicated with an air exhaust component outside and comprises a fire-resistant channel, one end of the fire-resistant channel is closed, the other end of the fire-resistant channel is communicated with the air exhaust channel, the side wall of the fire-resistant channel is communicated with a branch pipeline, the branch pipeline is communicated with an adjusting channel, an adjusting air door used for adjusting the flow of the extracted atmosphere is arranged on the adjusting channel, the adjusting air door is controlled to adjust the flow of the extracted atmosphere, the using method is simple and convenient, the temperature of the atmosphere can be observed through a thermometer, and the safety of the extraction process is guaranteed.

Furthermore, the one end of adjusting the passageway is trumpet-shaped to be connected on the branch pipeline, the adjusting the passageway other end is connected with the air exhauster that is used for taking the atmosphere out, just can take the atmosphere in the roller kilns out through the air exhauster.

Further, air damper has two sets ofly, locates between the junction of regulating passage and branch pipeline and regulating passage and air exhauster respectively, the both ends of regulating passage all are equipped with the thermometer that is used for looking over the atmosphere temperature, and two sets of air damper homoenergetic are adjusted, set up two sets of air damper and can avoid the pipeline to be corroded, guarantee the stability of the part of bleeding.

Furthermore, the material of the damper is high temperature resistant and thermal shock resistant ceramic, so that the damper can be prevented from being corroded by atmosphere, and the service life of the damper is prolonged.

Compared with the prior art, the utility model has the advantages that:

through setting up the atmosphere with the convection current of product traffic direction, make the temperature in the roller kilns more even, be favorable to the promotion of product sintering quality to inlet channel sets up in the both sides and the bottom of casket body subassembly, and is more even to the processing of casket internal product, can not produce the big condition of casket body subassembly internal product processing quality difference.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

FIG. 1 is a schematic view of the main structure of the present invention;

fig. 2 is a schematic structural view of a second embodiment of the present invention;

description of reference numerals:

10. a kiln body; 11. a kiln chamber; 12. a transport mechanism; 13. a cartridge body assembly; 14. an air intake passage; 15. an air extraction channel; 16. a preheating section; 17. an adjustment assembly; 18. an intake valve; 19. a flow meter; 20. an air extraction part; 21. a refractory channel; 22. branch pipelines; 23. adjusting the channel; 24. an air damper; 26. a thermometer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example one

Referring to fig. 1 for the embodiment of the utility model relates to a roller kiln process atmosphere adjustment system, roller kiln include the kiln chamber 11 in the kiln body 10, get into the transport mechanism 12 in the kiln chamber 11, are equipped with casket body subassembly 13 on the transport mechanism 12, add man-hour, the product holds and transports the roller kiln through transport mechanism 12 in casket body subassembly 13, casket body subassembly 13 generally is two lines stack from top to bottom, the multiseriate is arranged and is operated in the roller kiln and process. Roller kiln technology atmosphere adjustment system includes inlet channel 14, inlet channel 14 communicates to the kiln 11 inside, the external connection has the air supply, inlet channel 14 is the triangle of falling and arranges respectively on kiln 10, the position of letting in of both sides inlet channel 14 corresponds the both sides of casket subassembly 13, the position of letting in of bottom inlet channel 14 corresponds the bottom of casket subassembly 13, furthermore, the position of both sides inlet channel 14 corresponds the space department between two rows about casket subassembly 13 both sides, the inlet channel 14 of bottom corresponds the space department between two rows at casket subassembly 13, and the air current direction in the inlet channel 14 is relative with the transmission direction of casket subassembly 13, set up like this and to make the better circulation of atmosphere between casket subassembly 13, realize the convection heat transfer, make the atmosphere homogeneity better, be favorable to the promotion of product quality. The air pumping channel 15 is arranged at the top of the kiln body 10 and communicated to the kiln cavity 11, and after the product is processed, the process atmosphere is pumped out through the air pumping channel 15. The atmosphere introduced into the air inlet channel 14 needs to be preheated before entering the kiln cavity 11, the preheating section 16 is arranged in the kiln body 10 and communicated with the air inlet channel 14, the atmosphere enters the preheating section 16 after being introduced into the air inlet channel 14, the product is processed in the roller kiln after the temperature of the atmosphere is raised, and the preheating section 16 is made of refractory materials, so that the heating service life of the preheating section 16 can be prolonged.

Referring to fig. 1, the air inlet channel 14 is connected with an adjusting assembly 17 outside the roller kiln, and includes an air inlet valve 18, a person adjusts the flow rate of the atmosphere entering the roller kiln through the air inlet valve 18, the air inlet valve 18 is connected with a flow meter 19, the real-time air inlet flow rate of the atmosphere can be displayed on the flow meter 19, and when the atmosphere is abnormal or needs to be adjusted, the operation can be accurately performed by observing the flow meter 19. The air inlet valve 18 is a stainless steel ball valve, and the stainless steel ball valve can avoid the corrosion of atmosphere to the air inlet valve 18, so that the service life of the air inlet valve 18 and the normal use of an atmosphere adjusting system are ensured.

Referring to fig. 1, air exhaust passage 15 is externally connected with air exhaust component 20, can be when product processing is accomplished, take the atmosphere out through air exhaust component 20, air exhaust component 20 includes fire-resistant passage 21, fire-resistant passage 21 is vertical form and fixes in kiln body 10 outside, one end and air exhaust passage 15 intercommunication, the other end is sealed, it has branch pipe 22 only to be equipped with the opening intercommunication in the side, what set up like this can make the atmosphere take out, the upper and lower difference in temperature in the roller kiln can not differ too greatly, influence the final quality of product, branch pipe 22 intercommunication has adjusting channel 23, be equipped with an air damper 24 on adjusting channel 23, through setting up air damper 24, adjust the flow of taking out the atmosphere, still install thermometer 26 on adjusting channel 23, can observe the real-time temperature of atmosphere, thereby be convenient for further adjust the gas flow of taking out. The adjusting channel 23 is horn-shaped, one end with a large opening is connected to the branch pipeline 22, one end with a small opening is connected with the exhaust fan, the atmosphere in the roller kiln can be extracted by starting the exhaust fan, and the branch pipeline 22 is L-shaped, so that the rear adjusting channel 23 and the exhaust fan can be conveniently installed.

Example two

Different from the first embodiment, the damper 24 is provided with two sets on the adjusting channel 23 in this embodiment, refer to fig. 2, one set is provided at the junction of the adjusting channel 23 and the branch pipe 22, the other set is provided between the adjusting channel 23 and the exhaust fan 25, both sets of the damper 24 are provided with the thermometer 26, the material of the damper 24 adopts high temperature resistant and thermal shock resistant ceramics, and the two sets of the damper 24 are provided, which has the significance of preventing the corrosion of the top adjusting channel 23, causing the pollution to the product during the air draft, and simultaneously solving the problem that the service life of the traditional damper 24 made of stainless steel material is short.

The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. The utility model provides a roller kiln process atmosphere adjustment system, roller kiln includes the kiln chamber in the kiln body, gets into transport mechanism in the kiln chamber is in with the setting be used for holding the casket body subassembly of product on the transport mechanism, its characterized in that: comprises that

The air inlet channel is arranged on the kiln body and communicated to the kiln cavity;

the air pumping channel is arranged at the top of the kiln body and used for pumping out process atmosphere;

the air inlet channels are arranged on the kiln body in an inverted triangle shape and respectively correspond to two sides and the bottom of the box body component, and the air flow direction of the air inlet channels is opposite to the transmission direction of the box body component.

2. The process atmosphere modification system of claim 1, wherein: the air inlet channels on the two sides are symmetrically arranged outside the kiln body, the inlet positions of the air inlet channels are corresponding to the box body assemblies and are line gaps, the air inlet channels on the bottom are arranged on one side of the outside of the kiln body, and the inlet positions of the air inlet channels are corresponding to the row gaps of the box body assemblies.

3. The process atmosphere modification system of claim 2, wherein: the air inlet channels are connected with a preheating section for heating process atmosphere.

4. The process atmosphere modification system of claim 3, wherein: the preheating section is made of refractory materials.

5. The process atmosphere modification system of claim 1, wherein: the air inlet channel is externally connected with an adjusting assembly, the adjusting assembly comprises an air inlet valve used for adjusting flow, and the air inlet valve is connected with a flow meter and used for observing the air inlet flow of atmosphere.

6. The process atmosphere modification system of claim 5, wherein: the air inlet valve is a stainless steel ball valve.

7. The process atmosphere modification system of claim 1, wherein: the exhaust passage is externally communicated with an exhaust part and comprises a fire-resistant passage, one end of the fire-resistant passage is closed, the other end of the fire-resistant passage is communicated with the exhaust passage, the side wall of the fire-resistant passage is communicated with a branch pipe, the branch pipe is communicated with an adjusting passage, and the adjusting passage is provided with an adjusting air door for adjusting the flow of the exhausted atmosphere.

8. The process atmosphere modification system of claim 7, wherein: one end of the adjusting channel is connected to the branch pipeline in a horn shape, and the other end of the adjusting channel is connected with an exhaust fan used for pumping out atmosphere.

9. The process atmosphere modification system of claim 8, wherein: the adjusting air doors are two groups and are respectively arranged at the joint of the adjusting channel and the branch pipeline and between the adjusting channel and the exhaust fan, and thermometers used for checking the atmosphere temperature are arranged at two ends of the adjusting channel.

10. The process atmosphere modification system of claim 7, wherein: the material of the damper is high temperature resistant and thermal shock resistant ceramic.