CN215209158U - Phosphogypsum is calcined with preheating rotary kiln - Google Patents
Phosphogypsum is calcined with preheating rotary kiln Download PDFInfo
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- CN215209158U CN215209158U CN202121196623.2U CN202121196623U CN215209158U CN 215209158 U CN215209158 U CN 215209158U CN 202121196623 U CN202121196623 U CN 202121196623U CN 215209158 U CN215209158 U CN 215209158U
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Abstract
The utility model discloses a preheating rotary kiln for calcining phosphogypsum, which comprises an inner roller and an outer sleeve, wherein two ends of the outer sleeve are respectively fixed with a left bracket and a right bracket, the inner roller passes through the center of the outer sleeve, two ends of the inner roller respectively penetrate out of the left bracket and the right bracket to be connected with a feeding rotary frame and a discharging rotary frame, and joints are all installed by adopting sealing bearings; an air inlet pipe is arranged at one end of the outer sleeve close to the discharging rotary frame, and an exhaust pipe is arranged at one end of the outer sleeve close to the feeding rotary frame; still be provided with the heating pipe at interior cylinder center, from ejection of compact spiral frame one end penetrate, the feeding is revolved frame one end and is worn out, interior cylinder internal perisporium is provided with the propulsion spiral. The utility model discloses to calcine the high temperature mist that produces and pour into outer sleeve and heating tube into, the inside and the external heating of while internal cylinder can exchange more heats when the velocity of flow is slow, and the high temperature mist that comes from the burning furnace in the whole process does not produce the contact with the interior ardealite of internal cylinder, avoids the steam condensation in the high temperature mist to return and inhales, influences the efficiency of preheating and drying.
Description
Technical Field
The utility model relates to an ardealite generates equipment, in particular to ardealite is calcined with preheating rotary kiln.
Background
Phosphogypsum is a waste of phosphorus chemical enterprises, is converted into semi-hydrated phosphogypsum through calcination and can be used in industry, high-temperature mixed gas generated by calcination is generally used for preheating before calcination so as to reduce energy consumption and recover partial heat, but the high-temperature mixed gas is directly introduced into a preheating tank for heating at present, because a large amount of water vapor is contained in the high-temperature mixed gas, the high-temperature mixed gas is absorbed back by the phosphogypsum after being condensed, the drying efficiency is influenced, the concentration of the water vapor also influences the evaporation efficiency of water, the same heating efficiency from the surface is slow, and the heat recovery rate is not high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a ardealite is calcined with preheating rotary kiln to solve the technical problem in the above-mentioned background art.
The technical scheme of the utility model is that:
a preheating rotary kiln for phosphogypsum calcination comprises an inner roller and an outer sleeve, wherein two ends of the outer sleeve are respectively fixed with a left support and a right support, the inner roller penetrates through the center of the outer sleeve, two ends of the inner roller respectively penetrate out of the left support and the right support to be connected with a feeding rotary frame and a discharging rotary frame, and the joints are all installed by adopting sealing bearings; an air inlet pipe is arranged at one end of the outer sleeve close to the discharging rotary frame, and an exhaust pipe is arranged at one end of the outer sleeve close to the feeding rotary frame; still be provided with the heating pipe at interior cylinder center, from ejection of compact spiral frame one end penetrate, the feeding is revolved frame one end and is worn out, interior cylinder internal perisporium is provided with the propulsion spiral.
Further, the outer peripheral wall of the inner roller is provided with a heat conduction spiral.
Furthermore, a material collecting groove is arranged in the discharging rotary frame, and a material discharging opening obliquely connected with the material collecting groove is arranged on one side of the discharging rotary frame.
Further, a feeding groove is arranged in the feeding rotary frame, a feeding hole is formed in the top end of the feeding groove, the feeding groove is inclined towards the inner roller, and the bottom of the feeding groove is higher than the bottom side of the inner roller.
Furthermore, the inner roller is provided with toothed rings on the outer circumferences between the feeding rotary frame and the left support and between the discharging rotary frame and the right support, and the toothed rings are driven by gears.
The utility model discloses an useful part lies in:
the utility model has the advantages of high-efficient high temperature mist that has utilized the in-process of calcining to produce, then pour into the outer sleeve with it from the intake pipe respectively, in the leading-in interior cylinder of heating pipe, the inside and the external heating of interior cylinder simultaneously, and the air current cross-section is bigger, can exchange more heats when the velocity of flow is slow, greatly promote recovery efficiency, and the whole in-process comes from the high temperature mist of calcining the stove and does not produce the contact with the interior ardealite of interior cylinder, avoid the steam condensation in the high temperature mist to return and inhale, the influence preheats and dry efficiency.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic view of the internal structure of the present invention.
In the figure: 1-inner roller, 11-propelling screw, 12-toothed ring, 13-heat conducting screw, 2-outer sleeve, 21-left support, 22-right support, 23-air inlet pipe, 24-air outlet pipe, 3-feeding rotary frame, 31-feed inlet, 32-feed groove, 4-discharging rotary frame, 41-material collecting groove, 42-discharge outlet, 5-sealed bearing and 6-heating pipe.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-2:
a preheating rotary kiln for phosphogypsum calcination comprises an inner roller 1 and an outer sleeve 2, wherein two ends of the outer sleeve 2 are respectively fixed with a left support 21 and a right support 22, the inner roller 1 penetrates through the center of the outer sleeve 2, two ends of the inner roller respectively penetrate out of the left support 21 and the right support 22 to be connected with a feeding rotary frame 3 and a discharging rotary frame 4, and the joints are all installed by adopting sealing bearings 5; an air inlet pipe 23 is arranged at one end of the outer sleeve 2 close to the discharging rotary frame 4, and an air outlet pipe 24 is arranged at one end of the outer sleeve 2 close to the feeding rotary frame 3; still including 1 center of cylinder be provided with heating pipe 6, from the ejection of compact spiral frame 4 one end penetrate, 3 one ends of feeding spiral frame are worn out, 1 internal perisporium of interior cylinder is provided with propulsion spiral 11.
Specifically, the outer peripheral wall of the inner roller 1 is provided with a heat conduction spiral 13, so that the contact area of the heat conduction spiral and the air in the sleeve is increased, and more heat is transferred.
Specifically, a material collecting groove 41 is arranged in the discharging rotary frame 4, and a material discharging opening 42 obliquely connected with the material collecting groove 41 is arranged on one side of the discharging rotary frame 4.
Specifically, be provided with feed chute 32 in the feeding revolves frame 3, feed chute 32 top sets up feed inlet 31, just feed chute 32 inclines to interior cylinder 1, and the bottom of feed chute 32 is higher than interior cylinder 1 bottom side, can make the feeding more smooth and easy like this, avoids piling up in feed chute 32.
Specifically, the inner drum 1 is provided with the toothed rings 12 on the outer circumferences between the feeding rotating frame 3 and the left support 21 and between the discharging rotating frame 4 and the right support 22, the toothed rings 12 are driven by a gear, and the motor is used for driving the gear to drive the toothed rings 12, so that the inner drum 1 rotates, which is a common technical means, and therefore, the details are omitted herein, and other modes such as belt ring driving, belt driving, or rolling ring driving, roller driving and the like can be adopted.
The utility model has the advantages of high efficiency has utilized the high temperature mist that the in-process produced of calcining, then pour into outer sleeve 2 with it from intake pipe 23 respectively, in the leading-in interior cylinder 1 of heating pipe 6, simultaneously inside and the external heating of interior cylinder 1, and the air current cross-section is bigger, can exchange more heats when the velocity of flow is slow, greatly promote recovery efficiency, and the high temperature mist that comes from the calcining furnace among the whole process does not produce the contact with interior ardealite in the cylinder 1, avoid the steam condensation in the high temperature mist to return and inhale, the influence preheats and dry efficiency.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (5)
1. A preheating rotary kiln for ardealite calcination is characterized in that: the feeding rotary frame and the discharging rotary frame are connected with each other through the left support and the right support, and the joints are all installed by adopting sealing bearings; an air inlet pipe is arranged at one end of the outer sleeve close to the discharging rotary frame, and an exhaust pipe is arranged at one end of the outer sleeve close to the feeding rotary frame; still be provided with the heating pipe at interior cylinder center, from ejection of compact spiral frame one end penetrate, the feeding is revolved frame one end and is worn out, interior cylinder internal perisporium is provided with the propulsion spiral.
2. The preheated rotary kiln for phosphogypsum calcination according to claim 1, characterized in that: the outer peripheral wall of the inner roller is provided with a heat conduction spiral.
3. The preheated rotary kiln for phosphogypsum calcination according to claim 1, characterized in that: the discharging rotary frame is internally provided with a material collecting groove, and one side of the discharging rotary frame is provided with a material discharging opening which is obliquely connected with the material collecting groove.
4. The preheated rotary kiln for phosphogypsum calcination according to claim 1, characterized in that: the feeding rotary frame is internally provided with a feeding groove, the top end of the feeding groove is provided with a feeding hole, the feeding groove is inclined towards the inner roller, and the bottom of the feeding groove is higher than the bottom side of the inner roller.
5. The preheated rotary kiln for phosphogypsum calcination according to any of claims 1 to 4, characterized in that: the outer circumferences of the inner roller between the feeding rotary frame and the left support and between the discharging rotary frame and the right support are respectively provided with a toothed ring, and the toothed rings are driven by gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121196623.2U CN215209158U (en) | 2021-05-31 | 2021-05-31 | Phosphogypsum is calcined with preheating rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121196623.2U CN215209158U (en) | 2021-05-31 | 2021-05-31 | Phosphogypsum is calcined with preheating rotary kiln |
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| Publication Number | Publication Date |
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| CN215209158U true CN215209158U (en) | 2021-12-17 |
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| CN202121196623.2U Active CN215209158U (en) | 2021-05-31 | 2021-05-31 | Phosphogypsum is calcined with preheating rotary kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116812878A (en) * | 2023-04-01 | 2023-09-29 | 江苏田润化工设备有限公司 | A desorption purifier for refining sulfuric acid production |
-
2021
- 2021-05-31 CN CN202121196623.2U patent/CN215209158U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116812878A (en) * | 2023-04-01 | 2023-09-29 | 江苏田润化工设备有限公司 | A desorption purifier for refining sulfuric acid production |
| CN116812878B (en) * | 2023-04-01 | 2024-06-07 | 江苏田润化工设备有限公司 | A desorption purifier for refining sulfuric acid production |
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