CN210892629U

CN210892629U - Silica spray drying tail gas heat exchange device

Info

Publication number: CN210892629U
Application number: CN201921479451.2U
Authority: CN
Inventors: 李品; 庄洪运; 李祥凯; 王奉叶; 郑晓刚
Original assignee: Shandong Lianke Technology Co ltd
Current assignee: Shandong Lianke Technology Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-06-30
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses a silica spray drying tail gas heat exchange device, including heat pipe exchanger and plate heat exchanger, heat pipe exchanger and plate heat exchanger lateral wall between the two are connected, and heat pipe exchanger sets up the tail gas air inlet in the lateral wall lower part of keeping away from plate heat exchanger, and heat pipe heat exchanger sets up hot air outlet and cold wind import respectively at the upper and lower both ends that are close to plate heat exchanger, and plate heat exchanger sets up hot water export and normal atmospheric temperature water, comdenstion water import respectively at the upper and lower both ends of keeping away from heat pipe heat exchanger, and plate heat exchanger sets up the tail gas export on the lateral wall upper portion of keeping away from. After installing novel heat exchanger additional, because retrieved a large amount of heat energy, the fuel of 15% has been saved to the hot blast stove, and the warm water is used for the washing process, practices thrift the steam quantity more than 30%, has reduced the purification treatment and the emission of water, retrieves the comdenstion water and has replaced 35% deionized water, can carry out the daily clearance of heat exchanger under the condition of needn't stopping production, has reduced artificial production fluctuation.

Description

Silica spray drying tail gas heat exchange device

Technical Field

The utility model relates to a silica crosses atomizing technical field, specifically is a silica spray drying tail gas heat exchange device.

Background

In the prior art, the temperature of tail gas generated after silicon dioxide spray drying is up to 110 ℃, and the tail gas is directly discharged into the atmosphere, so that the waste of heat energy is caused; the tail gas condensate water generated after the silicon dioxide spray drying is directly discharged outside, and the waste of water resources is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a silicon dioxide spray drying tail gas heat exchange device, which aims to solve the problem that the temperature of the tail gas generated after the silicon dioxide spray drying provided by the background technology is up to 110 ℃, and the tail gas is directly discharged into the atmosphere to cause the waste of heat energy; tail gas condensate water generated after the silicon dioxide is spray-dried is directly discharged outside, and the waste of water resources is caused.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a silica spray drying tail gas heat exchange device, includes heat pipe exchanger and plate heat exchanger, heat pipe exchanger and plate heat exchanger lateral wall between the two is connected, heat pipe exchanger sets up the tail gas air inlet in the lateral wall lower part of keeping away from plate heat exchanger, heat pipe exchanger sets up hot air outlet and cold wind import respectively at the upper and lower both ends that are close to plate heat exchanger, plate heat exchanger sets up hot water export and normal atmospheric temperature water, comdenstion water import respectively at the upper and lower both ends of keeping away from heat pipe exchanger, plate heat exchanger sets up the tail gas export on the lateral wall upper portion of keeping away from heat pipe heat exchanger.

Preferably, the top parts of the inner walls of the plate heat exchanger and the heat pipe heat exchanger are both provided with cleaning systems, the cleaning system at the top part of the inner wall of the plate heat exchanger is located at a position far away from a hot water outlet, and the cleaning system at the top part of the inner wall of the heat pipe heat exchanger is located at a position far away from a hot air outlet.

Preferably, the temperature of the tail gas entering from a tail gas inlet at the lower part of the side wall of the heat pipe exchanger is not lower than 110 ℃.

Preferably, the plate heat exchanger and the heat pipe heat exchanger are in gas communication.

Preferably, the tail gas entering from the tail gas inlet is subjected to a spray drying process before entering the interior of the heat pipe heat exchanger.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses, install novel heat exchanger additional after, because retrieved a large amount of heat energy, the hot blast stove has saved 15% fuel.

2. The utility model discloses, warm water is used for the washing process, practices thrift the steam quantity more than 30%.

3. The utility model discloses, reduced the purification treatment and the emission of water, retrieved the comdenstion water and replaced 35% deionized water.

4. The utility model discloses, can carry out the daily clearance of heat exchanger under the condition of unnecessary downtime, it is undulant to have reduced artificial production.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The method aims to solve the problem that the temperature of tail gas generated after the existing silicon dioxide spray drying is as high as 110 ℃, and the tail gas is directly discharged into the atmosphere to cause waste of heat energy; the tail gas comdenstion water that produces behind the silica spray drying, direct outer row causes the problem of the waste of water resource, the embodiment of the utility model provides a silica spray drying tail gas heat exchange device. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, the embodiment provides a silica spray drying exhaust gas heat exchange device, which includes a heat pipe heat exchanger and a plate heat exchanger, where side walls of the heat pipe heat exchanger and the plate heat exchanger are connected, a exhaust gas inlet is disposed at a lower portion of the side wall of the heat pipe heat exchanger, a hot air outlet and a cold air inlet are respectively disposed at upper and lower ends of the heat pipe heat exchanger close to the plate heat exchanger, a hot water outlet, a normal temperature water inlet and a condensed water inlet are respectively disposed at upper and lower ends of the plate heat exchanger far from the heat pipe heat exchanger, a tail gas outlet is disposed at an upper portion of the side wall of the plate heat exchanger far from the heat pipe heat exchanger, cleaning systems are disposed at top portions of inner walls of the plate heat exchanger and the heat pipe heat exchanger, the cleaning system at top portion of the inner wall of the plate heat exchanger is located, the temperature of tail gas entering from a tail gas inlet at the lower part of the side wall of the heat pipe heat exchanger is not lower than 110 ℃, and the tail gas entering from the tail gas inlet is subjected to a spray drying process before entering the interior of the heat pipe heat exchanger, so that gas communication is implemented between the plate heat exchanger and the heat pipe heat exchanger.

In the present embodiment, the first and second electrodes are,

1. the novel heat exchanger is designed to be formed by combining a heat pipe heat exchanger capable of being washed immediately and a plate heat exchanger, and is easy to disassemble and assemble.

2. The heat pipe heat exchanger area is used for carrying out heat exchange between hot tail gas and cold air, and the tail gas at 110 ℃ is used for exchanging heat of the cold air to hot air at 60-70 ℃ and used for combustion-supporting air of the gas furnace, so that the combustion-supporting efficiency is improved, and the fuel cost is saved.

3. The plate heat exchanger area is used for carrying out the heat exchange of hot tail gas and normal temperature water, utilizes hot tail gas to heat transfer normal temperature water to 50 ℃, and the warm water after the heat transfer is used for other processes, reduces this process steam quantity.

4. Condensed water generated by cooling spray-dried tail gas is used as high-purity water for a core process in production, so that the consumption of the original deionized water is reduced.

5. Be equipped with special cleaning system in the novel heat exchanger, guaranteeing not needing under the circumstances of stopping production, can in time clear up the heat exchanger, clearance convenient and fast has saved the time.

In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a silica spray drying tail gas heat exchange device, includes heat pipe exchanger and plate heat exchanger, its characterized in that: the side wall between the heat pipe heat exchanger and the plate heat exchanger is connected, a tail gas inlet is arranged on the lower portion of the side wall, far away from the plate heat exchanger, of the heat pipe heat exchanger, a hot air outlet and a cold air inlet are respectively arranged at the upper end and the lower end, close to the plate heat exchanger, of the heat pipe heat exchanger, a hot water outlet, a normal-temperature water inlet and a condensate water inlet are respectively arranged at the upper end and the lower end, far away from the heat pipe heat exchanger, of the plate heat exchanger, and a tail gas outlet is arranged.

2. The silica spray drying tail gas heat exchange device of claim 1, characterized in that: cleaning systems are arranged at the tops of the inner walls of the plate heat exchanger and the heat pipe heat exchanger, the cleaning system at the top of the inner wall of the plate heat exchanger is located at a position far away from a hot water outlet, and the cleaning system at the top of the inner wall of the heat pipe heat exchanger is located at a position far away from a hot air outlet.

3. The silica spray drying tail gas heat exchange device of claim 1, characterized in that: the temperature of tail gas entering a tail gas inlet at the lower part of the side wall of the heat pipe exchanger is not lower than 110 ℃.

4. The silica spray drying tail gas heat exchange device of claim 1, characterized in that: and the plate heat exchanger and the heat pipe heat exchanger are communicated with each other by gas.

5. The silica spray drying tail gas heat exchange device of claim 3, characterized in that: and the tail gas entering from the tail gas inlet is subjected to a spray drying process before entering the interior of the heat pipe heat exchanger.