CN214120784U

CN214120784U - Mass transfer device in roasting furnace

Info

Publication number: CN214120784U
Application number: CN202023344205.1U
Authority: CN
Inventors: 熊帆; 熊鹰; 王德春; 陈方旭; 周高胜
Original assignee: Chongqing Changjiang River Moulding Material Group Co ltd
Current assignee: Chongqing Changjiang River Moulding Material Group Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-03
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to the technical field of precoated sand regeneration equipment, and discloses a mass transfer device in a roasting furnace, which comprises a blowing structure and a sealing plate arranged in the roasting furnace body, wherein the sealing plate divides the roasting furnace into a first roasting chamber and a second roasting chamber, the sealing plate is arranged from one end close to a feeding pipe along the downward inclination of the other end, and the inclination angle of the sealing plate is less than 15 degrees; the shrouding is equipped with a plurality of portions of blowing, the structure of blowing and the portion intercommunication of blowing. By adopting the device, the roasting efficiency of the reclaimed sand can be improved, and the roasting uniformity of the reclaimed sand is improved.

Description

Mass transfer device in roasting furnace

Technical Field

The utility model relates to a tectorial membrane sand regeneration facility technical field, concretely relates to mass transfer device in roasting furnace.

Background

The roasting furnace is a main device for the hot method regeneration technology of the waste foundry sand, and the waste foundry sand is roasted at high temperature to enable a film coating layer on the surface of the waste foundry sand to fall off, so that the waste foundry sand is regenerated and recycled.

The roasting furnace commonly used at present is a vertical two-layer roasting furnace, the upper part of the furnace body is connected with a feeding pipe, a baffle is arranged in the furnace body, the baffle divides the furnace body into an upper roasting chamber and a lower roasting chamber, the bottom of the furnace body is connected with a discharging pipe and communicated with a main pipe, and a burner is arranged in the main pipe.

When the sand is roasted, the sand enters the upper roasting chamber for roasting and then enters the lower roasting chamber. In fact, the flowing speed of the sand in the roasting chamber is random, so that part of the sand cannot enter the lower roasting chamber or cannot enter the lower roasting chamber quickly, energy waste is caused conveniently, and the roasting efficiency is low; on the other hand, the sand in the upper roasting chamber is excessively roasted. When the speed of the sand in the upper roasting chamber entering the lower roasting chamber is too high, the sand cannot be fully roasted in the upper roasting chamber, and the finally discharged sand is not uniformly roasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mass transfer device in roasting furnace adopts the device can improve the calcination efficiency of reclaimed sand, improves the even degree of calcination of reclaimed sand.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a mass transfer device in a roasting furnace comprises an air blowing structure and a sealing plate arranged in the roasting furnace body, wherein the sealing plate divides the roasting furnace body into a first roasting chamber and a second roasting chamber, the sealing plate is arranged from one end close to a feeding pipe in a downward inclined mode along the other end, and the inclined angle of the sealing plate is smaller than 15 degrees; the shrouding is equipped with a plurality of portions of blowing, the structure of blowing and the portion intercommunication of blowing.

The principle and the beneficial effect of this scheme of adoption lie in: this scheme of adoption, when roasting the sand, will treat the sand of calcination and add first roasting chamber through the inlet pipe in, the sand falls into roasting chamber and carries out the calcination after in. The sand falls into the shrouding upper end in the firing chamber, because the shrouding sets up for the slope, so under the effect of shrouding, the sand flows to the other end of shrouding and enters into in the second firing chamber from the one end of shrouding. In the process that the sand flows along the sealing plate, the blowing structure generates wind power and blows the sand out through the blowing part, and the blowing structure also has a driving force on the sand to push the sand to flow along the sealing plate and enter the second roasting chamber.

In this scheme, the shrouding has a slope along other end downward sloping setting in the one end that is close to the inlet pipe, can make sand flow along the shrouding fast promptly, and the structure of blowing and the portion of blowing also can accelerate the flow of sand. And the inclination angle of the sealing plate is less than 15 degrees, so that the flowing speed of the sand is not too high, and the sand can be fully roasted in the first roasting chamber and uniformly roasted.

Further, the angle of inclination of the sealing plate is 0-3 degrees.

Further, a plurality of portions that blow evenly set up along the shrouding.

Further, the portion of blowing includes tuber pipe and hood, and the tuber pipe middle part is the pipeline of blowing, and the hood is connected and the hood circumference is equipped with a plurality of mouths of blowing with the tuber pipe upper end, the mouth of blowing and the pipeline intercommunication of blowing.

Further, the blowing structure comprises an air chamber and an air source, wherein the air chamber is positioned in the lower roasting chamber and is communicated with the air source.

Further, the air source is a blower.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of a mass transfer device in a roasting furnace according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view of FIG. 1 at B;

fig. 4 is a perspective view of a communicating shell in the second embodiment of the mass transfer device in the roasting furnace of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a furnace body 1, a feeding pipe 2, a first roasting chamber 3, a second roasting chamber 4, an air chamber 5, a blower 6, a sealing plate 7, an air pipe 8, an air cap 9, a blowing pipeline 10, a blowing port 11, a communicating shell 12, an air outlet pipe 13, a baffle plate 14, a communicating hole 15, a fixing hole 16, an air inlet pipe 17 and a fixing plate 18.

Example one

The embodiment is substantially as shown in figures 1, 2 and 3 of the accompanying drawings: the mass transfer device in the roasting furnace comprises a blowing structure and a sealing plate 7 arranged in a roasting furnace body 1, wherein the sealing plate 7 divides the roasting furnace into a first roasting chamber 3 and a second roasting chamber 4, the sealing plate 7 is arranged from one end close to a feeding pipe 2 along the other end in a downward inclined mode, and the inclined angle of the sealing plate 7 is smaller than 15 degrees. Preferably, the angle of inclination of the sealing plate 7 is 0-3 °, in this embodiment 1 °. Shrouding 7 is equipped with a plurality of portions that blow, and a plurality of portions that blow evenly set up along shrouding 7. The portion of blowing includes tuber pipe 8 and

hood

9, and 8 middle parts of tuber pipe are blowing pipeline 10, and hood 9 is connected and hood 9 circumference is equipped with a plurality of mouths of blowing 11 with 8 upper ends of tuber pipe, and mouth of blowing 11 communicates with blowing pipeline 10. The lower end of the air pipe 8 passes through the closing plate 7 and is communicated with the second roasting chamber 4.

The blowing structure comprises an air chamber 5 and an air source, wherein the air chamber 5 is positioned in the lower roasting chamber and is communicated with the air source. The air source in the embodiment is a blower 6, and the upper end of the air chamber 5 is communicated with the second roasting chamber 4.

The specific implementation process is as follows: this scheme of adoption, when roasting the sand, will treat the sand of calcination and add first roasting chamber 3 through inlet pipe 2 in, the sand falls into roasting chamber and carries out the calcination after. The sand falls into the upper end of the sealing plate 7 in the firing chamber and because the plate 7 is inclined, under the action of the plate, the sand flows from one end of the plate 7 to the other end of the plate 7 and into the second firing chamber 4. In the process of the sand flowing along the closing plate 7, the blowing structure generates wind power and blows out through the blowing part, and also has a pushing force on the sand, so that the sand is pushed to flow along the closing plate 7 and enter the second roasting chamber 4.

In this scheme, shrouding 7 sets up along other end downward sloping near the one end of inlet pipe 2, and shrouding 7 has a slope promptly, can make sand along 7 fast flows of shrouding, and the portion of blowing also can accelerate the flow of sand. And the inclination angle of the sealing plate 7 is less than 15 degrees, so that the flowing speed of the sand is not too high, and the sand can be fully roasted in the first roasting chamber 3 and uniformly roasted.

In addition, the wind chamber 5 is arranged in the scheme, so that wind power generated by the air blower 6 can uniformly enter the wind chamber 5 and uniformly enter the wind pipes 8, the wind power entering the first roasting chamber 3 through the wind pipes 8 is relatively uniform, and the flowing speed of sand on the sealing plate 7 is relatively uniform.

Example two

Referring to fig. 4, the difference between the first embodiment and the second embodiment is that the second embodiment further includes a communicating casing 12 and a fixing pin, a communicating chamber is disposed in the communicating casing 12, an air inlet pipe 17 is disposed at one end of the communicating chamber, an air outlet pipe 13 is disposed at the other end of the communicating chamber, and the air inlet pipe 17 and the air outlet pipe 13 are respectively communicated with the communicating chamber. The air inlet pipe 17 is communicated with the blower 6, and the air outlet pipe 13 is communicated with the air chamber 5 through a communicating pipe. The upper part of the communicating shell 12 is rotatably connected with a round baffle 14 through a pin shaft, the baffle 14 is provided with a plurality of communicating holes 15, and the plurality of communicating holes 15 are respectively round and have different diameters. The centers of circles of the communication holes 15 are all located on the same circle concentric with the baffle 14, and one of the communication holes is opposite to the air outlet. A plurality of fixing holes 16 are also formed in the circumferential direction of the baffle plate 14, and the fixing holes 16 are through holes; the number of the fixing holes 16 is the same as the number of the communication holes 15 and each of the communication holes 15 corresponds to one of the fixing holes 16, respectively. The upper part of the communicating shell 12 is also welded with a fixing plate 18, and the fixing plate 18 is provided with a blind hole. The fixing pin can pass through the fixing hole 16 and extend into the blind hole.

When the sand is discharged, the baffle plate 14 can be rotated to enable the communicating holes 15 with different sizes to be opposite to the air outlet, so that the air quantity discharged from the air outlet pipe 13 is adjusted, the flow of air blown out from the air outlet is adjusted, and the effect of adjusting the sand discharge quantity in unit time is achieved. After the baffle plate 14 rotates to a corresponding angle, the fixing pin penetrates through the fixing hole 16 and extends into the blind hole, so that the baffle plate 14 can be limited.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A mass transfer device in a roasting furnace is characterized in that: the roasting furnace comprises a blowing structure and a sealing plate arranged in a roasting furnace body, wherein the sealing plate divides the roasting furnace body into a first roasting chamber and a second roasting chamber, the sealing plate is arranged from one end close to a feeding pipe in a downward inclination mode along the other end, and the inclination angle of the sealing plate is smaller than 15 degrees; the shrouding is equipped with a plurality of portions of blowing, the structure of blowing and the portion intercommunication of blowing.

2. The mass transfer device in a roasting furnace of claim 1, wherein: the angle of inclination of the sealing plate is 0-3 degrees.

3. The mass transfer device in a roasting furnace of claim 2, wherein: a plurality of portions that blow evenly set up along the shrouding.

4. The mass transfer device in a roasting furnace of claim 3, wherein: the blowing part comprises an air pipe and an air cap, the middle of the air pipe is a blowing pipeline, the air cap is connected with the upper end of the air pipe, a plurality of blowing openings are circumferentially arranged on the air cap, and the blowing openings are communicated with the blowing pipeline.

5. The mass transfer device in a roasting furnace of claim 4, wherein: the blowing structure comprises an air chamber and an air source, wherein the air chamber is positioned in the lower roasting chamber and is communicated with the air source.

6. The mass transfer device in a roasting furnace of claim 5, wherein: the air source is a blower.