CN209123483U - A kind of cyclic ammonia water filter device - Google Patents

Abstract

The utility model discloses a kind of cyclic ammonia water filter devices, including spiral-flow filter, the first backwash filter and the second backwash filter, first backwash filter and second backwash filter are parallel with one another by pipeline, the cyclic ammonia water acts in circulating pump and is respectively delivered to first backwash filter and second backwash filter by the spiral-flow filter, and the cyclic ammonia water enters the heat exchanger of rear end after filtering twice.Pass through setting spiral-flow filter and two groups of backwash filters; utilize the efficient combination of spiral-flow filter and backwash filter; using double-filtration mode; the filter efficiency of cyclic ammonia water can be greatly improved, while can be realized backwash process and can be switched, cyclic ammonia water filter process continuous work is uninterrupted; without shutting down; filter efficiency is improved, ensure that the continuity that cyclic ammonia water utilizes, improves the heat exchange efficiency that cyclic ammonia water utilizes.

Description

A kind of cyclic ammonia water filter device

Technical field

The utility model relates to coke-oven plant's cyclic ammonia water equipment technical field, in particular to a kind of cyclic ammonia water filtering dress It sets.

Background technique

Filter is indispensable device in pumped (conveying) medium pipeline, and in coke-oven plant's process of coking, coke-stove gas is from carbon Changing temperature of the room by tedge evolution is 700 DEG C or so, contains tar gas, steam, ammonia, particulate matter and other in coal gas at this time Compound is come into full contact with to recycle and handle these compounds using the ammonium hydroxide and coal gas of fine mist, and it is aobvious that ammonium hydroxide absorbs coal gas Hot part evaporation is entered in coal gas, gas temperature and is down to 83 DEG C or so, and ammonia temperature rises to 80 DEG C or so, at this time in ammonium hydroxide The amount of having carried suspended matter, solid particulate matter and impurity, when the cyclic ammonia water for carrying gas heat enters heat exchanger or bromine When changing lithium refrigeration unit, cyclic ammonia water will appear the problem of blocking heat exchanger is with heat exchange efficiency is reduced.

It is general to be carried secretly in cyclic ammonia water by mechanization tar ammonia defecator during current coking production The impurity such as tar slag, coal cinder carry out simple separation, and although this processing mode can satisfy normal production needs, but recycling When ammonia pressures fluctuate, the impurity for being deposited on cyclic ammonia water duct bottom is easily entrained at ammonium hydroxide spray head, causes to spray Head blocking.When spray head blocking is generally to be handled by the way of manually dredging spray head, but this kind dredges manner of cleaning up operation It is cumbersome, need to stop production process, it is time-consuming and laborious, and treatment effeciency is low, the high-efficiency and continuous for seriously constraining relevant device is made Industry.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of cyclic ammonia water filter devices, for existing coking production In the process occur spray head blocking, need to shut down blowdown restrict cyclic ammonia water work continuously ability the technical issues of.

In order to solve the above-mentioned technical problem, specifically, the technical solution of the utility model is as follows:

A kind of cyclic ammonia water filter device, including spiral-flow filter, the first backwash filter and second are backwashed Filter, first backwash filter and second backwash filter are parallel with one another by pipeline, the cyclic ammonia water It is acted in circulating pump and first backwash filter and second recoil is respectively delivered to by the spiral-flow filter Filter is washed, the cyclic ammonia water enters the heat exchanger of rear end after filtering twice.

Further, first pressure sensor and second pressure are provided on the front and back end pipeline of the spiral-flow filter Sensor, for obtaining the first pressure difference for passing in and out the cyclic ammonia water of the spiral-flow filter.

Further, first backwash filter and second backwash filter pass through on the pipeline after parallel connection It is provided with third pressure sensor, it is anti-to obtain described first by the second pressure sensor and the third pressure sensor Second pressure difference of cyclic ammonia water described in flush filter or second backwash filter front and back end.

Further, the corresponding spiral-flow filter is provided with the first blowdown valve, when the institute for passing in and out the spiral-flow filter When stating the first pressure difference of cyclic ammonia water more than preset value, the spiral-flow filter is discharged by first blowdown valve.

Further, corresponding first backwash filter and second backwash filter be respectively set one group it is anti- The back flush valve is successively opened to described when the second pressure difference of the cyclic ammonia water is more than preset value to flushing valve First backwash filter and second backwash filter distinguish flushing pollution discharge.

Further, the cyclic ammonia water filter device further includes power controling box, the power controling box and the rotation Flow filter, first backwash filter, second backwash filter, the first pressure sensor, described two Pressure sensor and third pressure sensor are electrically connected.

The utility model has the beneficial effects that

The cyclic ammonia water filter device of the utility model passes through setting spiral-flow filter and two groups of backwash filters, benefit Circulation ammonia can be greatly improved using double-filtration mode with the efficient combination of spiral-flow filter and backwash filter The filter efficiency of water, while can be realized backwash process and can be switched, cyclic ammonia water filter process continuous work is uninterrupted, is not necessarily to It shuts down, improves filter efficiency, ensure that the continuity that cyclic ammonia water utilizes, improve the heat exchange efficiency that cyclic ammonia water utilizes.

Detailed description of the invention

Fig. 1 is the first cyclic ammonia water filter apparatus configuration schematic diagram of the utility model.

In figure, 1- first pressure sensor P1,2- spiral-flow filter, 3- second pressure sensor P2,4- first is backwashed Filter, the second backwash filter of 5-, 6- third pressure sensor P3,7- power controling box.

Specific embodiment

Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other It can be combined with each other.

Embodiment 1

As shown in Figure 1, the utility model provides a kind of cyclic ammonia water filter device, including spiral-flow filter 2, first Backwash filter 4 and the second backwash filter 5, first backwash filter 4 and second backwash filter Device 5 is parallel with one another by pipeline, and the cyclic ammonia water acts in circulating pump and is respectively delivered to institute by the spiral-flow filter 2 The first backwash filter 4 and second backwash filter 5 are stated, after the cyclic ammonia water enters after filtering twice The heat exchanger at end.

In the utility model embodiment, first pressure biography is provided on the front and back end pipeline of the spiral-flow filter 2 Sensor 1 and second pressure sensor 3, for obtaining the first pressure difference for passing in and out the cyclic ammonia water of the spiral-flow filter 2.

In the utility model embodiment, first backwash filter 4 and second backwash filter 5 are logical It is provided with third pressure sensor 6 on pipeline after crossing parallel connection, is passed by the second pressure sensor 3 and the third pressure Sensor 6 obtains cyclic ammonia water described in first backwash filter 4 or 5 front and back end of the second backwash filter Second pressure difference.

In the utility model embodiment, the corresponding spiral-flow filter 2 is provided with the first blowdown valve, when the disengaging rotation When first pressure difference of the cyclic ammonia water of flow filter 2 is more than preset value, by first blowdown valve to the eddy flow Filter 2 is discharged.

In the utility model embodiment, corresponding first backwash filter 4 and second backwash filter 5 One group of back flush valve is respectively set, when the second pressure difference of the cyclic ammonia water is more than preset value, successively opens described anti- Flushing pollution discharge is distinguished to first backwash filter and second backwash filter to flushing valve.

In the utility model embodiment, the cyclic ammonia water filter device further includes power controling box 7, the power supply control Case 7 processed and the spiral-flow filter 2, first backwash filter 4, second backwash filter 5, first pressure Force snesor 1, two pressure sensor 3 and third pressure sensor 6 are electrically connected.

Specifically, cyclic ammonia water initially enters spiral-flow filter 2 under the action of circulating pump with certain pressure and temperature The particulate matter and magazine in ammonium hydroxide are removed, it is anti-with certain pressure to enter the second level by the filtered cyclic ammonia water of the first order Further remove the suspended matter and magazine in ammonium hydroxide in flush filter, cyclic ammonia water is by 2 device of cyclone filter and backwashed Filter filter twice after with certain pressure venting, into rear end heat exchanger.When the pressure difference of pressure gauge P1 and P2 are more than setting When value, pressure sensor passes the signal along to power controling box 7, and power controling box 7 issues alarm signal, at this time to level-one eddy flow Filter 2 carries out manual blowdown, and when the pressure difference of pressure gauge P2 and P3 are more than setting value, pressure sensor transmits signal To control cabinet, control cabinet issues alarm signal, carries out sewage backwash to second level back flush filter at this time, is first turned on another Outer one group of backwash filter valve blowdown simultaneously closes off the backwash filter valve of operating status, and it is anti-to open another set Flush filter valve guarantees to can guarantee that another set backwash filter can be just while backwash filter blowdown again Often work, cyclic ammonia water can be continuously run.

In addition, spiral-flow filter is the ideal filter of current underground coal mine spraying firing dust water system.Spiral-flow filter Have the advantages that filter capacity is big, the pressure loss is small, blowdown is convenient；Spiral-flow filter has the suspended matter of fine particle preferable Filter effect.The spiral-flow filter that the technical program is related to uses the existing procucts of existing market buying.

Back flush filter is also using the existing procucts of existing market buying, as BRAUKMANN F74C1015 is anti- To flushing water sand filter etc., needed to carry out type selecting according to scheme.

The cyclic ammonia water filter device of the utility model passes through setting spiral-flow filter and two groups of backwash filters, benefit Circulation ammonia can be greatly improved using double-filtration mode with the efficient combination of spiral-flow filter and backwash filter The filter efficiency of water, while can be realized backwash process and can be switched, cyclic ammonia water filter process continuous work is uninterrupted, is not necessarily to It shuts down, improves filter efficiency, ensure that the continuity that cyclic ammonia water utilizes, improve the heat exchange efficiency that cyclic ammonia water utilizes.

In the description of the utility model patent, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length Degree ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", The orientation or positional relationship of the instructions such as "outside", " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction ", " row ", " column " is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the utility model patent and simplifies description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is interpreted as the limitation novel to the utility model patent.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the utility model patent, the meaning of " plurality " is at least two, such as Two, three etc., unless otherwise specifically defined.

In utility model patent unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", The terms such as " fixation ", " connected " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or at one Body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can To be the interaction relationship of connection or two elements inside two elements, unless otherwise restricted clearly.For this field Those of ordinary skill for, can understand concrete meaning of the above-mentioned term in the utility model patent as the case may be.

In the utility model patent unless specifically defined or limited otherwise, fisrt feature in second feature "upper" or "lower" can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, the One feature can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or First feature horizontal height is merely representative of higher than second feature.Fisrt feature is under the second feature " below ", " below " and " below " It can be fisrt feature to be directly under or diagonally below the second feature, or be merely representative of first feature horizontal height less than the second spy Sign.

The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.

Claims (6)

1. a kind of cyclic ammonia water filter device, which is characterized in that the filter device includes spiral-flow filter, first backwashed Filter and the second backwash filter, first backwash filter and second backwash filter pass through pipeline phase Mutually in parallel, the cyclic ammonia water acts on that be respectively delivered to described first by the spiral-flow filter backwashed in circulating pump Filter and second backwash filter, the cyclic ammonia water enters the heat exchanger of rear end after filtering twice.

2. cyclic ammonia water filter device according to claim 1, which is characterized in that in the front and back end of the spiral-flow filter It is provided with first pressure sensor and second pressure sensor on pipeline, is followed described in the spiral-flow filter for obtaining to pass in and out First pressure difference of ring ammonium hydroxide.

3. cyclic ammonia water filter device according to claim 2, which is characterized in that first backwash filter and institute The second backwash filter is stated by being provided with third pressure sensor on the pipeline after parallel connection, is sensed by the second pressure Device and the third pressure sensor obtain first backwash filter or second backwash filter front and back end Second pressure difference of the cyclic ammonia water.

4. cyclic ammonia water filter device according to claim 2, which is characterized in that the corresponding spiral-flow filter is provided with First blowdown valve passes through institute when passing in and out the first pressure difference of the cyclic ammonia water of the spiral-flow filter more than preset value The first blowdown valve is stated the spiral-flow filter is discharged.

5. cyclic ammonia water filter device according to claim 3, which is characterized in that corresponding first backwash filter One group of back flush valve is respectively set with second backwash filter, when the second pressure difference of the cyclic ammonia water is more than pre- If when value, successively opening the back flush valve and distinguishing first backwash filter and second backwash filter Flushing pollution discharge.

6. cyclic ammonia water filter device according to claim 3, which is characterized in that the cyclic ammonia water filter device also wraps Include power controling box, the power controling box and the spiral-flow filter, first backwash filter, second recoil Filter, the first pressure sensor, two pressure sensor and the third pressure sensor is washed to be electrically connected.