CN217163650U

CN217163650U - Catalyst dust and reaction waste heat recycling device in pyridine base production

Info

Publication number: CN217163650U
Application number: CN202123130492.0U
Authority: CN
Inventors: 王海成; 于洪波; 杜宜祥; 刘清华
Original assignee: SHANDONG KUNDA BIOTECHNOLOGY CO Ltd
Current assignee: SHANDONG KUNDA BIOTECHNOLOGY CO Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-08-12
Anticipated expiration: 2031-12-14

Abstract

The utility model belongs to the technical field of pyridine base production facility technique and specifically relates to a catalyst dust and reaction waste heat recovery utilize device in pyridine base production, including reactor, filter, steam generator and the rapid cooling absorption tower that connects gradually, the filter includes filter body and nitrogen gas blowback system, steam generator is equipped with the soft water import, steam generator is connected with the steam pocket. The utility model discloses utilize the filter to filter the catalyst dust in the reaction gas, filter 90% of them catalyst dust, recycle nitrogen gas blowback system and blow back the reactor utilization, increase steam generator simultaneously, make the reaction gas cooling, can produce steam, bring economic benefits, the reaction gas temperature can be dropped to 200 ℃, reduces follow-up absorption system load.

Description

Catalyst dust and reaction waste heat recycling device in pyridine base production

Technical Field

The utility model belongs to the technical field of pyridine base production facility technique and specifically relates to a catalyst dust and reaction waste heat recovery utilize device in pyridine base production.

Background

In the pyridine base industry, catalyst dust carried by reaction gas can enter wastewater of a follow-up system, the catalyst dust is gathered in the system and can block the system, the long-term operation of the system is influenced, 2.5 tons of wastewater can be generated every ton of pyridine base is produced, the wastewater contains trace pyridine, ammonia, benzene, catalyst slag and the like, the conventional sewage treatment mode is difficult to treat and generally carries out incineration treatment, the wastewater can contain solid-phase catalyst slag, when in incineration, an impeller of a wastewater pump can be frequently blocked, and the condition that particulate matters exceed the standard easily occurs during incineration. And the reaction gas temperature is higher, the heat waste is serious, a large amount of cooling water is needed for cooling and absorbing subsequently, and the energy consumption is higher.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a catalyst dust and reaction waste heat recovery utilize device in pyridine base production has solved the easy problem of blockking up and the too high difficult cooling of reaction temperature of follow-up production system.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a catalyst dust and reaction waste heat recovery utilize device in pyridine alkali production, is including the reactor, filter, steam generator and the rapid cooling absorption tower that connect gradually, the filter includes filter body and nitrogen gas blowback system, steam generator is equipped with the soft water import, steam generator is connected with the steam pocket.

Preferably, the nitrogen back-blowing system comprises a nitrogen bag, an electromagnetic pulse valve, a pressurizer, a blowing pipe and a PLC (programmable logic controller).

Preferably, soft water is input into the soft water inlet.

As optimization, the filter body is internally provided with a filter element, and the filter element is made of stainless steel.

The utility model has the advantages that: the utility model provides a pair of catalyst dust and reaction waste heat recovery utilize device in pyridine alkali production utilizes the catalyst dust among the filter filtration reaction gas, filters 90% catalyst dust wherein, recycles nitrogen gas blowback system and blows back the reactor utilization, increases steam generator simultaneously, makes the reaction gas cooling, can produce steam, brings economic benefits, and the reaction gas temperature can drop to 200 ℃, reduces follow-up absorption system load.

Drawings

Fig. 1 is a schematic view of the working process of the present invention;

fig. 2 is the structure diagram of the nitrogen back-blowing system of the present invention.

Wherein: 1. a nitrogen bag, 2, an electromagnetic pulse valve, 3, a pressurizer, 4 and a blowing pipe.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the equipment or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the invention.

As shown in fig. 1-2, a catalyst dust and reaction waste heat recycling device in pyridine base production, includes reactor, filter, steam generator and the rapid cooling absorption tower that connects gradually, the filter includes filter body and nitrogen gas blowback system, steam generator is equipped with the soft water import, steam generator is connected with the steam pocket, and the steam pocket has the deposit of certain heat and working medium, can slow down vapour pressure change speed, plays certain cushioning effect.

The nitrogen back-blowing system comprises a nitrogen bag 1, an electromagnetic pulse valve 2, a pressurizer 3, a blowing pipe 4 and a PLC (programmable logic controller). The soft water is input into the soft water inlet, so that the temperature of the reaction gas can be reduced at an accelerated speed.

The filter is characterized in that a filter element is arranged in the filter body, and the filter element is made of stainless steel.

The working principle is as follows: the utility model provides a pair of catalyst dust and reaction waste heat recovery utilize device in pyridine base production, in using, formaldehyde, acetaldehyde adds into the reactor, produce 480 ℃ high temperature reaction gas, reaction gas at first gets into in the filter, carry out filtering operation by filter body, filter body will filter wherein 90% catalyst dust, start nitrogen gas blowback system, through the PLC controller, receive the blowback signal after, nitrogen package 1 under the 3 effects of presser is controlled by electromagnetic pulse valve 2 and is got into injection pipe 4, compressed nitrogen in injection pipe 4 blows to the catalyst dust that filter body inner filter element crossed, blow it to the reactor in, then produce steam through steam generator, after reducing the reaction gas temperature to 200 ℃, get into the rapid cooling absorption tower.

The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.

Claims

1. A catalyst dust and reaction waste heat recovery utilize device in pyridine alkali production which characterized in that: including reactor, filter, steam generator and the rapid cooling absorption tower that connects gradually, the filter includes filter body and nitrogen gas blowback system, steam generator is equipped with soft water import, steam generator is connected with the steam pocket.

2. The device for recycling catalyst dust and reaction waste heat in pyridine base production according to claim 1, wherein: the nitrogen back-blowing system comprises a nitrogen bag, an electromagnetic pulse valve, a pressurizer, a blowing pipe and a PLC (programmable logic controller).

3. The device for recycling catalyst dust and reaction waste heat in pyridine base production according to claim 1, characterized in that: soft water is input into the soft water inlet.

4. The device for recycling catalyst dust and reaction waste heat in pyridine base production according to claim 3, wherein: the filter is characterized in that a filter element is arranged in the filter body, and the filter element is made of stainless steel.