CN210434473U

CN210434473U - Spiral feeder for recycling steam waste heat

Info

Publication number: CN210434473U
Application number: CN201920930500.3U
Authority: CN
Inventors: 浦勤根; 秦伟江
Original assignee: Anhui Exuberant Additives Co Ltd
Current assignee: Anhui Exuberant Additives Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-05-01
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a retrieve screw feeder of steam waste heat contains the body, the pipe wall of body is bilayer structure, is equipped with hollow cavity in the pipe wall, the both ends of body be equipped with through rotary joint with intake pipe and the outlet duct that the cavity is linked together, the pivot is hollow structure, is equipped with the pipeline coaxial with the pivot in the pivot, the both ends of pivot be equipped with intake pipe and the outlet duct that the pipeline is linked together, heat source exit tube and blast pipe insert the vapor recovery pipeline, intake pipe and outlet duct are established ties and are inserted in the vapor recovery pipeline. The utility model discloses carry out preliminary preheating to the alkali in the spiral feeder with the steam that has the waste heat in the steam recovery pipeline, improve the initial temperature that alkali got into in the reation kettle, energy-concerving and environment-protective has improved reaction efficiency.

Description

Spiral feeder for recycling steam waste heat

Technical Field

The utility model belongs to material conveying equipment field, in particular to retrieve feed screw of steam waste heat.

Background

Chemical industry enterprise acid-base reaction salt manufacturing needs add the alkali of powder in the sour of liquid, reacts in reation kettle, and partial acid-base reaction needs heat, and chemical industry enterprise often arranges steam conduit in the factory building for heat supplies such as reation kettle and disk dryer, steam after providing the heat source, can recondensate into water and retrieve and recycle, and this in-process can cause calorific loss, can't carry out make full use of to the heat.

Alkali is conveyed into the reaction kettle through the spiral feeder at room temperature, the temperature in the reaction kettle is reduced when a large amount of alkali at room temperature is added into the reaction kettle, the reaction efficiency is influenced, the temperature of the alkali entering the reaction kettle is increased, the reaction efficiency is improved, and the heating energy consumption of the reaction kettle is saved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that prior art's defect is overcome, provided a spiral feeder of retrieving steam waste heat, utilize the steam that has the waste heat in the steam recovery pipeline to carry out preliminary preheating to the alkali in the spiral feeder, improve the initial temperature that alkali gets into in the reation kettle, energy-concerving and environment-protective has improved reaction efficiency.

The technical scheme of the utility model:

a spiral feeder for recovering steam waste heat comprises a pipe body, a rotating shaft, a motor, a feeding port, a discharging port and a spiral impeller, wherein the rotating shaft is coaxially arranged with the pipe body, the motor is arranged at one end of the pipe body and drives the rotating shaft to rotate, the feeding port is arranged at the feeding end of the pipe body, the opening of the feeding port is upward, the discharging port is downward, the spiral impeller is arranged on the rotating shaft, the feeding end of the pipe body is obliquely arranged, the discharging end of the pipe body is arranged on the ground, the discharging end of the pipe body is positioned right above a reaction kettle, the reaction kettle is provided with a heat source inlet pipe for introducing a high-temperature steam heat source, a heat source outlet pipe for discharging high-temperature steam and an exhaust pipe for discharging evaporated steam in the reaction kettle, the pipe wall of the pipe body is of a double-layer structure, a hollow cavity is arranged in, and the two ends of the rotating shaft are provided with an air inlet pipe and an air outlet pipe which are communicated with the pipeline through rotary joints, the heat source outlet pipe and the air outlet pipe are connected into a steam recovery pipeline, and the air inlet pipe and the air outlet pipe are connected in series and connected into the steam recovery pipeline.

Furthermore, the air inlet pipe is arranged at the discharging end, and the air outlet pipe is arranged at the feeding end.

Furthermore, a water collecting tank is arranged between the air outlet pipe and the steam recovery pipeline and is connected into a water tank of the steam generator.

Furthermore, the inner side cavity wall of the cavity and the inner wall of the pipeline are provided with annular ripples which are arranged and used for increasing the heating area.

Furthermore, a layer of heat-insulating layer wraps the pipe body.

Further, the steam recovery pipeline is also connected with a heat source outlet pipe and an exhaust pipe of the disc dryer.

Compared with the prior art, the utility model discloses a redesign screw feeder's body and pivot, utilize the steam waste heat of equipment such as reation kettle and desiccator and the heat in the vapor of heating evaporation, carry out preliminary heating to the alkali in the pipe body and outside the pivot, because the continuous rotation of helical impeller turns over the stir-fry, very big improvement heating efficiency, not only improved the initial temperature of the alkali that gets into in the reation kettle, reaction efficiency is improved, the energy resource consumption of reation kettle heating has been reduced, and the waste heat to steam is retrieved and is recycled, energy utilization is improved, energy saving and emission reduction, the enterprise benefit has been improved; the air inlet pipe is positioned above the air outlet pipe, the air outlet pipe is positioned below the air inlet pipe, due to the rising trend of high-temperature steam, the upward inlet and downward outlet are beneficial to downward movement of the high-temperature steam, the heat exchange efficiency is improved, and the air outlet pipe below the air inlet pipe can be used for discharging condensed water; the water collecting tank collects the condensed water and sends the warm water with the residual heat into the steam generator, thereby not only recovering water resources but also recovering heat; the annular corrugation improves the heating area of the cavity wall and the tube wall, and improves the heat exchange efficiency; the design of the heat preservation layer is beneficial to locking the temperature in the pipe body, preventing heat dissipation and improving the energy utilization rate. The utility model discloses carry out preliminary preheating to the alkali in the spiral feeder with the steam that has the waste heat in the steam recovery pipeline, improve the initial temperature that alkali got into in the reation kettle, energy-concerving and environment-protective has improved reaction efficiency.

Drawings

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

fig. 2 is a schematic diagram of the structure of the chamber and the pipeline of the present invention.

Detailed Description

The following describes in detail embodiments of the present invention with reference to the accompanying drawings.

Example 1:

a spiral feeder for recovering steam waste heat comprises a pipe body 1, a rotating shaft 2 coaxially arranged with the pipe body 1, a motor 3 arranged at one end of the pipe body 1 and driving the rotating shaft 2 to rotate, a feeding port 11 arranged at the feeding end of the pipe body 1 and provided with an upward opening, a discharging port 12 arranged at the discharging end of the pipe body 1 and provided with a downward opening, and a spiral impeller 21 arranged on the rotating shaft 2, wherein the pipe body 1 is obliquely arranged, the feeding end of the pipe body 1 is arranged on the ground, the discharging end of the pipe body 1 is positioned right above a reaction kettle 4, the reaction kettle 4 is provided with a heat source inlet pipe 41 for introducing a high-temperature steam heat source, a heat source outlet pipe 42 for discharging high-temperature steam and an exhaust pipe 43 for discharging steam evaporated in the reaction kettle, the pipe wall of the pipe body 1 is of a double-layer structure, a hollow chamber 13 is arranged in the pipe wall, and an air inlet pipe 51 and an air, the rotating shaft 2 is of a hollow structure, a pipeline 22 coaxial with the rotating shaft 2 is arranged in the rotating shaft 2, an air inlet pipe 51 and an air outlet pipe 52 which are communicated with the pipeline 22 through a rotary joint 23 are arranged at two ends of the rotating shaft 2, the heat source outlet pipe 41 and the air outlet pipe 43 are connected into the steam recovery pipeline 6, and the air inlet pipe 51 and the air outlet pipe 52 are connected in series into the steam recovery pipeline 6.

Further, the air inlet pipe 51 is arranged at the discharging end, and the air outlet pipe 52 is arranged at the feeding end.

Further, a water collecting tank 7 is arranged between the air outlet pipe 52 and the steam recovery pipeline 6, and the water collecting tank 7 is connected into a water tank of the steam generator.

Further, the inner side wall of the chamber 13 and the inner wall of the pipeline 22 are provided with annular ripples 8 arranged in an array for increasing the heating area.

Further, the pipe body 1 is wrapped with a layer of heat insulation layer 9.

Further, the steam recovery pipeline 6 is also connected with a heat source outlet pipe and an exhaust pipe of the disc dryer.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, and the present invention will have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements all fall into the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a retrieve screw feeder of steam waste heat which characterized in that: the device comprises a pipe body, a rotating shaft, a motor, a feeding port, a discharging port and a spiral impeller, wherein the rotating shaft is coaxially arranged with the pipe body, the motor is arranged at one end of the pipe body and drives the rotating shaft to rotate, the feeding port is arranged at the feeding end of the pipe body, the discharging port is arranged at the discharging end of the pipe body, the discharging port is arranged at the downward opening, the spiral impeller is arranged on the rotating shaft, the feeding end of the pipe body is arranged on the ground, the discharging end of the pipe body is positioned right above a reaction kettle, the reaction kettle is provided with a heat source inlet pipe for introducing a high-temperature steam heat source, a heat source outlet pipe for discharging high-temperature steam and an exhaust pipe for discharging evaporated steam in the reaction kettle, the pipe wall of the pipe body is of a double-layer structure, a hollow cavity chamber is arranged in the pipe wall, an air inlet pipe and an air outlet pipe which are communicated, the heat source outlet pipe and the exhaust pipe are connected into a steam recovery pipeline, and the air inlet pipe and the air outlet pipe are connected into the steam recovery pipeline in series.

2. The screw feeder of claim 1, wherein: the intake pipe sets up in the discharge end, and the outlet duct sets up in the material loading end.

3. The screw feeder of claim 1, wherein: and a water collecting tank is arranged between the air outlet pipe and the steam recovery pipeline and is connected into a water tank of the steam generator.

4. The screw feeder of claim 1, wherein: and annular ripples arranged in an array mode for increasing the heating area are arranged on the inner side cavity wall of the cavity and the inner wall of the pipeline.

5. The screw feeder of claim 1, wherein: the pipe body is wrapped by a heat insulation layer.

6. The screw feeder of claim 1, wherein: the steam recovery pipeline is also connected with a heat source outlet pipe and an exhaust pipe of the disc dryer.