CN201516329U

CN201516329U - Combined trap

Info

Publication number: CN201516329U
Application number: CN2009203118086U
Authority: CN
Inventors: 田玉峰; 张艳华; 李燕; 许力强; 罗铭芳; 张志恒; 黄国强
Original assignee: Tianjin University
Current assignee: Tianjin University
Priority date: 2009-09-29
Filing date: 2009-09-29
Publication date: 2010-06-30
Anticipated expiration: 2019-09-29

Abstract

The utility model relates to a combined trap, comprising a folded plate trapping sleeve, a collecting awl, a foam trapping net and a foam trapping net support frame, the upper semi-portion in the trap is the foam trapping net, the foam trapping net support frame is arranged under the foam trapping net, the bottom in the trap is the collecting awl, a drainage tube is arranged at the bottom of the awl, and the folded plate trapping sleeve is arranged at the peripheral of the foam trapping net and the foam trapping net support frame. When the gas with the liquid droplets and solid particulate matters rises to the top of a tower, firstly the gas penetrates through the folded plate trapping sleeve and the solid particulate matters and a part of liquid droplets are blocked up and trapped by the folded plate, then the gas enters into the combined trap and rises, the remained liquid droplets are trapped by the foam trapping net, and the clean gas is discharged out of the tower, the trapped liquid and solid particulate matters are returned into the tower by the drainage tube. The combined trap has simple structure and easy realization, the combined trap is detachable and is easy to be assembled and disassembled in the tower. Compared with the common silk net trap, the combined trap can be used for trapping the solid particulate matters and is not easy to be blocked, the structure is hard and is not to be damaged, and the combined trap has higher trapping efficiency.

Description

The combined type trap

Technical field

The invention belongs to technical field of chemical separation, particularly a kind of combined type trap.

Background technology

Under the background of rich coal, oil-poor, weak breath, in recent years, China's coal chemical technology development rapidly.In coal inhibition and generation fertilizer, coal system methyl alcohol, civilian coal gas industry, at first to produce coal gas with Gas-making Furnace.And in coking industry, can produce oven gas.These coal gases, oven gas temperature are very high, and carry a large amount of solid particulate matters secretly, must just can obtain clean available gas through supercooling, washing.The industrial cooling scrubbing tower that adopts more, cooling water sprays downwards from cat head by liquid distribution device, and upwards, two phase countercurrent flow contacts unstripped gas at the bottom of tower.Cooling water reduces gas phase temperature, takes away most of solid particulate matter in the gas phase simultaneously.The gas that arrives cat head has not only been carried many drops secretly, simultaneously some tiny solid particle of not cleaning.Therefore need trap be set at cat head, reduce drop and solid particle in the exhaust gas body, to reach production requirement.

Conventional trap mainly contains silk screen type and flap type.Silk screen type trap is called wire mesh demister again, is the most frequently used a kind of form, and it has in light weight, arresting efficiency is high characteristics such as (more than 99%).But it is unsuitable for the occasion of solid particle because solid particle embeds and to catch the foam net and can result in blockage, and the solid particle of high-speed motion constantly bump catch the foam net, it is fragile to cause catching the foam network capacity.

Flap type trap structure comparatively speaking is comparatively firm, can not only capture drop, can also capture solid particle, therefore flap type trap is used for having crystallization to separate out or the operating mode of other entrained solids particle more, but its arresting efficiency (60% ~ 80%) is unsuitable for the operating mode that arresting efficiency is had relatively high expectations not as good as wire mesh demister.

Summary of the invention

The situation of flap trap inefficiency the utility model proposes the combined type trap at the silk screen trap is easily stifled, also has firm in structurely when guaranteeing higher arresting efficiency, is difficult for stopping up, non-damageable advantage.

The technical solution of the utility model is as follows:

Combined type trap of the present utility model comprises that flap captures sleeve 1, collection cone 2, catches foam net 3 and catch foam net bracing frame 4; The inside first half of trap is caught foam side off the net for catching foam net bracing frame 4 for catching foam net 3, and the bottom is a collection cone 2, and mozzle is established at the awl end, and catching the foam net is that flap captures sleeve 1 with the periphery of catching foam net bracing frame.

Flap captures sleeve and is divided into any piece by vertical direction, is separated by sealing surface between piece and the piece, and the upper and lower end face of sleeve is sealing surface; The periphery of sleeve is the import of gas, and the inner headed face of sleeve is as the outlet of gas; The vertical multilayer flap 5 of welding between the upper and lower end face, flap subtended angle are arranged by the concentric circles fissure of displacement between flap layer and the layer all outwardly.

The upper and lower end face of catching foam net bracing frame respectively is anchor ring, the vertical passive angle steel of middle welding.The upper surface of bracing frame is directly supported and is caught the foam net, and the lower surface is connected with lower surface and collection cone 2 usefulness bolts that flap captures sleeve.

Operation principle of the present utility model is as follows:

When the gas of entrained drip and solid particulate matter rises to cat head, capture sleeve by flap earlier, stop, capture solid particulate matter and part drop through flap, enter combined type trap inside then, rise again and capture the residue drop by catching the foam net, handle the clean gas in back and discharge outside the tower, the liquid and the solid particulate matter that capture are then returned in the tower by mozzle.

Combined type trap advantage of the present utility model is:

Simple in structure, be easy to realize, and be removable design all, be easy in tower, load and unload;

Compare with common silk screen trap, can be used for capturing solid particulate matter and be difficult for obstruction, firm in structure, not fragile;

Compare with common flap trap, have higher arresting efficiency.

Description of drawings

Fig. 1: front view.

Fig. 2: A-A sectional view.

Fig. 3: B-B sectional view.

Among the figure: the 1-flap captures sleeve; The 2-collection cone; 3-catches the foam net; 4-catches foam net bracing frame; The 5-flap.

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments:

By shown in Figure 1, the utility model is captured sleeve 1, collection cone 2, is caught foam net 3 and catch foam net bracing frame 4 and form by flap.The inner first half of the present utility model is for catching foam net 3, catches foam net 3 belows and be the circular foam net bracing frame 4 of catching, and the bottom is a collection cone 2, and mozzle is established at the awl end.Catching foam net 3 is that flap captures sleeve 1 with the periphery of catching foam net bracing frame 4.All member is removable design, with convenient loading and unloading in tower.

By shown in Figure 2, flap captures sleeve 1 and is divided into 12 according to the tower diameter size by vertical direction, is separated and is connected with bolt by sealing surface between piece and the piece.The upper and lower end face of sleeve is sealing surface.The periphery of sleeve is as the import of gas, and inner headed face is as the outlet of gas.Four layers of vertical flap 5 of welding between the upper and lower end face, flap subtended angle are arranged by the concentric circles fissure of displacement between flap layer and the layer all outwardly, need to guarantee that gas all is tortuous by the path that periphery enters inner headed face.The sleeve upper surface with flap, catch foam net bracing frame to catching 3 spacing and fixations of foam net, on one side the lower surface is being provided with connecting hole by the center of circle, connects with bolt and catch foam net bracing frame 4 and collection cone 2.

By Fig. 2 and shown in Figure 3, catch foam net 3 and be industrial wire mesh demister form commonly used, also be the removable design of piecemeal, be divided into three at this.The thickness of catching foam net 3 is not less than standard wire mesh demister commonly used, and its diameter must not specifically be determined by calculating according to gas speed size in the tower less than cat head escape pipe diameter.The structure of catching foam net bracing frame 4 is as follows: its upper and lower end face is anchor ring, the vertical passive angle steel of middle welding.The upper surface of bracing frame is directly supported and is caught foam net 3, and the lower surface is connected with bolt with the lower surface that flap captures sleeve 1.Whole bracing frame is looked the tower diameter size and is divided into 4 by vertical direction, and every lower surface is connected and fixed with bolt with the lower surface that flap captures sleeve respectively.Collection cone 2 is connected and fixed with bolt with the lower surface that flap captures sleeve 1, and mozzle is established in the collection cone bottom, so that liquid that captures and solid particle mixture return in the tower.

In the operation, when the gas of entrained drip and solid particulate matter rises to cat head, capture sleeve 1 by flap earlier, stop, capture solid particulate matter and part drop through flap, enter combined type trap inside then, rising captures the residue drop by catching foam net 3 again, handles the clean gas in back and discharges outside the tower, and liquid that captures and solid particulate matter are collected the back by collection cone 2 and returned in the tower by mozzle.

The utility model is simple in structure, be easy to realize, and is removable design all, is easy to load and unload in tower. With existing flap trap and silk screen trap ratio, the utility model is particularly useful for processing coal gas, the oven gas that contains a large amount of drops and solid particulate matter.

Claims

1. a combined type trap comprises that flap captures sleeve (1), collection cone (2), catches foam net (3) and catch foam net bracing frame (4); The inside first half that it is characterized in that trap is caught foam side off the net for catching foam net bracing frame (4) for catching foam net (3), and the bottom is collection cone (2), and mozzle is established at the awl end, and catching the foam net is that flap captures sleeve (1) with the periphery of catching foam net bracing frame.

2. a kind of combined type trap as claimed in claim 1 is characterized in that flap captures sleeve and is divided into any piece by vertical direction, is separated by sealing surface between piece and the piece, and the upper and lower end face of sleeve is sealing surface; The periphery of sleeve is the import of gas, and the inner headed face of sleeve is as the outlet of gas; The vertical multilayer flap of welding between the upper and lower end face, flap subtended angle are arranged by the concentric circles fissure of displacement between flap layer and the layer all outwardly.

3. a kind of combined type trap as claimed in claim 1 is characterized in that the upper and lower end face of catching foam net bracing frame respectively is anchor ring, the vertical passive angle steel of middle welding.The upper surface of bracing frame is directly supported and is caught the foam net, and the lower surface is connected with bolt with lower surface and collection cone (2) that flap captures sleeve.