CN201320500Y

CN201320500Y - New type heat-insulating multi-tube dust cleaner

Info

Publication number: CN201320500Y
Application number: CNU2008202273107U
Authority: CN
Inventors: 李东田; 岳万华
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-30
Filing date: 2008-11-30
Publication date: 2009-10-07
Anticipated expiration: 2018-11-30

Abstract

The utility model discloses a new type heat-insulating multi-tube dust cleaner which comprises an outer casing and an inner casing; wherein a interlayer is arranged between the outer casing and the inner casing; the middle part of the dust cleaner is a dust cleaning chamber; the dust cleaning chamber is provided with a plurality of small-sized cyclone separating devices; the upper part of the dust cleaner is an air cleaning chamber; the air cleaning chamber is communicated with the interlayer; and the lower part of the dust cleaning chamber is a dust storehouse. The dust cleaner has the advantages of good separating effect, less number of separating devices, short separating flow and low production cost.

Description

The novel heat insulation multi-tube dust cleaner

Technical field

The utility model relates to a kind of dust arrester, relates in particular to the dust arrester that separates grained catalyst in a kind of Melamine Production.

Background technology

Be that catalyst, reactant, product form fluid bed in the melamine reactor under the effect of carrier gas, can carry the part grained catalyst secretly when the tail gas of reaction goes out reactor about 390 ℃, sublimate when separating out at melamine, together enter in the product of crystallization, be unfavorable for the refining of product, influence the raising of product quality.

The separation method of existing grained catalyst is under the condition of insulation measure, after a big cyclone separator rough segmentation, enters the bag filter segmentation again.Because the cyclone separator diameter is bigger, can only separate bigger particle, in bag filter,, be difficult for selecting efficient filter cloth and filter cloth cleaning reliably to be provided with owing to the temperature height, cause SR to strengthen easily, finally have influence on separating effect.

Summary of the invention

The purpose of this utility model is exactly the problem that separate to exist at grained catalyst in the existing Melamine Production process, and a kind of novel heat insulation multi-tube dust cleaner is provided, and it has good separating effect, separation process is short, equipment investment is few advantage.

The purpose of this utility model is achieved through the following technical solutions, this novel heat insulation multi-tube dust cleaner comprises a shell and inner casing, the described interlayer that between shell and inner casing, is provided with, the middle part of described deduster is a dirt pocket, be provided with the cyclone separator of a plurality of small dimensions in the described dirt pocket, described cyclone separator links to each other with the center appendix of transport of reactant gases by wireway, the upper port of described center appendix is positioned at the top of shell, the top of described dirt pocket is a purification air chamber, described purification air chamber communicates with interlayer, the bottom of described interlayer is provided with clean gas outlet, the bottom of described dirt pocket is the dust storehouse, and the bottom in described dust storehouse is provided with the dust outlet.

Reaction gas from a last flow process enters in the dirt pocket through the center appendix, behind each wireway standard air-flow, enter the whirly separator and finish gas, dirt separation process, purified gas enters the purification air chamber on dirt pocket top and concentrates discharge, flow to the bottom again after entering inside and outside shell interlayer top, discharge from the clean gas outlet of bottom, isolated dust enters in the dust storehouse in the dirt pocket, and discharges from the dust outlet.

The beneficial effects of the utility model:

1, good separating effect.Utilize the centrifugal force of particle and the principle that the separator diameter is inversely proportional to, the cyclone separator of a plurality of small dimensions is set in dirt pocket, more, littler grained catalyst can be separated;

2, dirt, material can not mix by secondary.Because the outer wall of deduster is the interlayer that inside and outside shell constitutes, feed the unstripped gas insulation that purifies in the interlayer, even descending, the deduster surface temperature melamine is sublimated also can be blown into the dried crystallizer of catching of back, because of assorted dirt divides, can not cause dirt, expect to mix.

3, cost is low.Compare with existing separation method, reduced number of devices, shortened separation process, reduced equipment investment.

Description of drawings

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing

Fig. 1 is a schematic diagram of the present utility model

Among the figure: 1, shell 2, inner casing 3, interlayer 4, dirt pocket 5, cyclone separator 6, wireway 7, center appendix 8, purification air chamber 9, clean gas outlet 10, dust storehouse 11, dust outlet

The specific embodiment

As shown in Figure 1, this novel heat insulation multi-tube dust cleaner comprises a shell 1 and inner casing 2, between shell 1 and inner casing 2, be provided with an interlayer 3, the middle part of deduster is a dirt pocket 4, be provided with the cyclone separator 5 of a plurality of small dimensions in the dirt pocket 4, cyclone separator 5 links to each other with the center appendix 7 of transport of reactant gases by wireway 6, the upper port of center appendix 7 is positioned at the top of shell, the top of dirt pocket 4 is a purification air chamber 8, purifying air chamber 8 communicates with interlayer 3, the bottom of interlayer 3 is provided with clean gas outlet 9, and the bottom of dirt pocket 4 is dust storehouse 10, and the bottom in dust storehouse 10 is provided with dust outlet 11.

From the reaction gas of a last flow process in center appendix 7 enters dirt pocket 4, behind each wireway 6 standard air-flow, enter whirly separator 5 and finish gas, dirt separation process, purified gas enters the purification air chamber 8 on dirt pocket 4 tops and concentrates discharge, flow to the bottom again after entering inside and outside shell interlayer 3 tops, discharge from the clean gas outlet 9 of bottom, isolated dust enters in the dust storehouse 10 in the dirt pocket 4, and discharges from dust outlet 11.

Claims

1, a kind of novel heat insulation multi-tube dust cleaner, it is characterized in that this novel heat insulation multi-tube dust cleaner comprises a shell and inner casing, the described interlayer that between shell and inner casing, is provided with, the middle part of described deduster is a dirt pocket, be provided with the cyclone separator of a plurality of small dimensions in the described dirt pocket, described cyclone separator links to each other with the center appendix of transport of reactant gases by wireway, the upper port of described center appendix is positioned at the top of shell, the top of described dirt pocket is a purification air chamber, described purification air chamber communicates with interlayer, the bottom of described interlayer is provided with clean gas outlet, and the bottom of described dirt pocket is the dust storehouse, and the bottom in described dust storehouse is provided with the dust outlet.