CN107243338B

CN107243338B - Modular combined type regenerative furnace

Info

Publication number: CN107243338B
Application number: CN201710567217.4A
Authority: CN
Inventors: 陈鲲; 李丽娜; 刘鲁建; 李文; 朱迪; 罗煜; 刘占刚
Original assignee: Hubei Junji Water Treatment Co Ltd
Current assignee: Junji Environmental Technology Co ltd
Priority date: 2017-07-12
Filing date: 2017-07-12
Publication date: 2023-04-18
Anticipated expiration: 2037-07-12
Also published as: CN107243338A

Abstract

The invention discloses a modular combined type regenerative furnace, which comprises a plurality of conveying pipelines, wherein each conveying pipeline can realize the heating and conveying of materials; a plurality of conveying pipelines are stacked from top to bottom to form a bow-shaped feeding groove; the conveying pipelines are connected through transition pieces, and high-temperature-resistant sand is filled in the transition pieces. The invention designs a special pipeline connecting piece by utilizing the fluidity of high-temperature sand and the sealing characteristic of the high-temperature sand to the powder, connects different conveying pipelines and conveys the powdered activated carbon under the high-temperature condition. The invention has simple structure and convenient installation.

Description

Modular combined type regeneration furnace

Technical Field

The invention belongs to the technical field of industrial equipment and processes, and particularly relates to a modular combined type regeneration furnace for powdered activated carbon regeneration.

Background

The activated carbon is used as an adsorbent widely used, the annual usage amount of various industries is considerable, and the recycling of the regenerated saturated activated carbon has strong economic and environmental benefits and is supported and encouraged by national policies. The heat regeneration method is the most applied and industrially most mature activated carbon regeneration method.

At present, a relatively mature heating regeneration process of powdered activated carbon needs to be heated and conveyed in a pipeline, and the pipeline has a thermal expansion phenomenon at a high temperature, so that the connection between different pipelines generates huge extrusion deformation, the pipeline is broken, a medium is leaked, and the regeneration fails. Therefore, a connecting device which can absorb the thermal expansion amount of the pipelines and can seal the powdered activated carbon is needed to realize safe and reliable connection between different pipelines.

Disclosure of Invention

Aiming at the defects of the existing device, the invention provides a modularized combined type regenerating furnace adopting high-temperature-resistant sand and a sand tank connecting piece, which effectively solves the sealing problem of the connecting section between pipelines, ensures that a conveying medium does not leak under the high-temperature condition, and can effectively absorb the thermal expansion amount of the pipeline generated under the high temperature.

The technical scheme adopted by the invention is as follows: a modular combined type regeneration furnace comprises a plurality of conveying pipelines, wherein each conveying pipeline can realize the heating and conveying of materials; the plurality of conveying pipelines are stacked from top to bottom to form a bow-shaped feeding groove;

the method is characterized in that: the conveying pipelines are connected through transition pieces, and high-temperature-resistant sand is filled in the transition pieces.

The high-temperature-resistant sand and transition piece of the embodiment are simple in structure and convenient to install. Utilize the mobility of high temperature sand and to the sealing characteristic of powder, design a special pipe connection spare, connect different pipeline, carry powdered activated carbon under the high temperature condition, because the mobility of high temperature sand, when the metal pipeline is heated the inflation, the transition piece can freely stretch out and draw back in the sand groove to the realization has fine sealed effect to the powder to pipeline thermal energy's absorption, sand simultaneously.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a connector according to an embodiment of the invention.

Detailed Description

The present solution is further described below with reference to the accompanying drawings, in which examples of the described embodiments are shown, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout, but the description is only for explaining the present invention and is not to be construed as limiting the present invention.

Referring to fig. 1 and fig. 2, the novel modular combined type regenerative furnace provided by the invention comprises a plurality of conveying pipelines 1, wherein each conveying pipeline 1 can heat and convey materials; a plurality of conveying pipelines 1 are stacked from top to bottom to form an arch-shaped feeding groove; the conveying pipelines 1 are connected through transition pieces, and high-temperature-resistant sand is filled in the transition pieces.

The transition piece of the embodiment is a U-shaped hollow circular ring-shaped tubular object and comprises a first transition piece 2 and a second transition piece 3; the bottom of the first transition piece 2 is fixedly provided with a circular ring-shaped insert ring (with a certain taper); a feeding hole in the upper part of the conveying pipeline 1 is fixedly connected with a second transition piece 3, and a discharging hole in the lower part of the conveying pipeline 1 is fixedly provided with an annular inserting ring (with a certain taper); the conveying pipeline 1 is inserted into the first transition piece 2 through a circular ring-shaped insert ring arranged at the lower part of the conveying pipeline, and a certain distance is reserved between the end part of the circular ring-shaped insert ring and the inner bottom of the first transition piece 2; the first transition piece 2 is inserted into the second transition piece 3 through a circular ring-shaped inserting ring arranged at the lower part of the first transition piece, and a certain distance is reserved between the end part of the circular ring-shaped inserting ring and the inner bottom of the second transition piece 3.

The high-temperature resistant sand adopted in the embodiment mainly refers to quartz sand or ceramic sand, silicon carbide sand and other tiny particles (common specifications are 20-40 meshes 2, 40-80 meshes and 100-120 meshes) resistant to more than 1000 ℃, the common specification of the activated carbon is 50-325 meshes, and the quartz sand with larger meshes is selected as the sealing raw material of the activated carbon with smaller meshes, so that the activated carbon is prevented from leaking.

The activated carbon moves in a certain direction in the conveying pipeline 1, a clamping groove structure is adopted in the vertical connecting section, the groove is filled with Gao Wensha resistance, the first part inserting section is processed into a part with a certain taper, the installation is convenient, and enough clearance is reserved between the bottoms of the two sand grooves and the inserting section to absorb the thermal expansion of the pipe fitting (see figure 2). When the pipeline 1 is conveyed, the expansion amount in the vertical direction can push sand grains to reduce the reserved absorption thermal expansion gap without causing the extrusion of the pipeline per se; the expansion in the horizontal direction can push the whole joint to move, and because the whole pipeline and the joint are not restrained in the horizontal direction, the pipeline can not be extruded, and when the expansion amount of the upper and lower connected pipelines is different, internal extrusion can be generated between the pipelines, but the extrusion can be absorbed by the flow of sand grains under extrusion and the inclination of the transition joint in advance, and meanwhile, the active carbon in the pipeline can not be leaked.

The invention is not only suitable for the pipeline transportation of the powdered activated carbon under the high temperature condition, but also suitable for the pipeline transportation of all powder media.

It should be understood that parts of the specification not set forth in detail are well within the prior art.

It should be understood that the above description of the preferred embodiments is given for clarity and not for any purpose of limitation, and that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A modular combined type regeneration furnace comprises a plurality of conveying pipelines (1), wherein each conveying pipeline (1) can realize the heating and conveying of materials; the conveying pipelines (1) are stacked from top to bottom to form an arched feeding groove;

the method is characterized in that: the conveying pipelines (1) are connected through a transition piece, and Gao Wensha is filled in the transition piece;

the transition piece is a U-shaped hollow circular ring-shaped tubular object and comprises a first transition piece (2) and a second transition piece (3); the bottom of the first transition piece (2) is fixedly provided with a circular ring-shaped insert ring; a feed inlet at the upper part of the conveying pipeline (1) is fixedly connected with a second transition piece (3), and a discharge outlet at the lower part of the conveying pipeline (1) is fixedly provided with an annular insert ring; the conveying pipeline (1) is inserted into the first transition piece (2) through a circular ring-shaped inserting ring arranged at the lower part of the conveying pipeline, and the first transition piece (2) is inserted into the second transition piece (3) through a circular ring-shaped inserting ring arranged at the lower part of the first transition piece;

the circular inserting ring arranged at the discharge hole at the lower part of the conveying pipeline (1) has a certain taper;

the annular insert ring fixedly arranged at the bottom of the first transition piece (2) has a certain taper.

2. The modular combined regenerator of claim 1, further comprising: the conveying pipeline (1) is inserted into the first transition piece (2) through a circular ring-shaped inserting ring arranged at the lower part of the conveying pipeline, and a certain distance is reserved between the end part of the circular ring-shaped inserting ring and the inner bottom of the first transition piece (2).

3. The modular combined regenerator of claim 1, further comprising: the first transition piece (2) is inserted into the second transition piece (3) through a circular ring-shaped inserting ring arranged at the lower part of the first transition piece, and a certain distance is reserved between the end part of the circular ring-shaped inserting ring and the inner bottom of the second transition piece (3).

4. A modular combined regenerator according to any of claims 1-3, further comprising: the high-temperature resistant sand is quartz sand, ceramic sand or silicon carbide sand.