CN217988379U - MVR crystal separator discharge device - Google Patents

Abstract

The utility model relates to a discharge device especially relates to a MVR crystal separator discharge device. The problems that a discharge pump is seriously abraded, the failure rate is high, a pipeline is frequently blocked, and the stability and the continuity of MVR system wastewater treatment are seriously influenced are solved. The utility model discloses a crystallization separator, crystal pipeline and stiff ware that connect gradually, be provided with the shower on the crystallization separator, the feed liquor end and the play liquid end of shower are located the inside upper and lower both sides of crystallization separator respectively, and the play liquid end is provided with the shower head, and the lower part of crystallization separator is provided with the salt leg, and the shower head is provided with the spray control pump with the highest point parallel and level of salt leg on the shower, be provided with the pneumatic valve on the crystal pipeline, spray control pump and pneumatic valve electricity are connected with the controller. The utility model discloses a technical scheme, reduced overhaul of the equipments, production management cost, ensured the stationarity and the continuity of material transport and control operation in the MVR system.

Description

MVR crystal separator discharge device

Technical Field

The utility model relates to a discharge device especially relates to a MVR crystal separator discharge device.

Background

The MVR system is evaporated through a heat exchanger, and waste water materials are heated by fresh steam so as to generate secondary steam and overflow. The waste water material heated by the steam is concentrated to become a supersaturated state, thereby causing crystals in the waste water material to grow. The supersaturated wastewater material enters a forced heat exchanger through a forced circulation pump, and the material is continuously evaporated, concentrated and crystallized in such a circulating way, and finally enters a crystallization separator. The supersaturated material has its crystal growing and gathering continuously under the influence of temperature difference, and the solid-liquid mixture with crystal is conveyed to the thickener by a discharge pump in the crystallization separator.

Due to the solid-liquid mixture of the crystals conveyed by the discharge pump, the discharge pump is seriously abraded, the failure rate is high, the pipeline is frequently blocked, and the stability and the continuity of the MVR system wastewater treatment are seriously influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a MVR crystal separator discharge device.

The utility model adopts the technical scheme as follows:

the utility model provides a MVR crystal separator discharge device, includes crystal separator, crystal pipeline and the stiff ware that connects gradually, be provided with the spray piping on the crystal separator, the feed liquor end of spray piping and play liquid end are located the inside upper and lower both sides of crystal separator respectively, it is provided with the shower head to go out the liquid end, the lower part of crystal separator is provided with the salt leg, the highest point parallel and level of shower head and salt leg, be provided with the spray control pump on the spray piping, be provided with the pneumatic valve on the crystal pipeline, spray control pump and pneumatic valve electricity are connected with the controller.

Preferably, the discharge opening of the crystallization separator is higher than the thickener.

Preferably, a plurality of spraying openings are uniformly arranged on the side surface of the spraying head at intervals.

Preferably, the crystal conveying pipeline is made of stainless steel materials.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. spray line's feed liquor end is located crystal separator upper portion, spray line goes out the shower head of liquid end and the highest point parallel and level of salt leg, extract the mother liquor through spraying the control pump in from crystal separator and wash the crystallization on the salt leg inner wall, do not influence crystallization efficiency, can effectually wash the crystallization on the salt leg inner wall down, avoid crystallization deposition to block up the bin outlet, adopt the pneumatic valve to arrange the material, it is high not only to arrange material heat exchange efficiency, area is little, material dwell time is short, it is difficult for gluing glutinous, the problem of pipeline jam has still been avoided, the number of times of maintenance of parking of MVR system has been reduced, the stationarity and the continuity of MVR system waste water treatment operation have been improved.

2. The discharge outlet of the crystallization separator is higher than that of the thickener, and the material is discharged by utilizing gravitational potential energy, so that the electric energy is saved compared with a discharge pump in the prior art.

3. The side of the spray header is evenly provided with a plurality of spray ports at intervals, so that the inner wall of the salt leg can be uniformly washed, and the blockage caused by crystallization and deposition can be avoided.

4. The crystal conveying pipeline is made of stainless steel materials, is easy to manufacture, is not easy to damage, and has the advantages of high strength, high temperature resistance and corrosion resistance.

Drawings

The invention will be described by way of example and with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic diagram of the prior art;

reference numerals

1-a crystal separator, 2-a crystal conveying pipeline, 3-a pneumatic valve, 4-a thickener, 5-a spray control pump, 6-a controller, 7-a spray pipeline, 8-a spray head, 9-a salt leg and 10-a spray port.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

The present invention will be described in detail with reference to fig. 1 to 2.

Example (b):

the utility model provides a MVR crystal separation ware discharge device, is including crystal separation ware 1, crystal pipeline 2 and the stiff ware 4 that connect gradually, be provided with shower 7 on the crystal separation ware 1, shower 7's feed liquor end and play liquid end are located 1 inside upper and lower both sides of crystal separation ware respectively, it is provided with shower 8 to go out the liquid end, the lower part of crystal separation ware 1 is provided with salt leg 9, shower 8 and salt leg 9's highest point parallel and level, be provided with spray control pump 5 on the shower 7, extract mother liquor through spray control pump 5 in following crystal separation ware 1 and wash the crystallization on salt leg 9 inner wall, do not influence crystallization efficiency, can effectual dashing crystallization on the salt leg 9 inner wall down, avoid crystallization deposition to block up the bin outlet, be provided with pneumatic valve 3 on the crystal pipeline 2, spray control pump 5 and pneumatic valve 3 electricity is connected with controller 6.

Combine figure 1, change the discharge pump that prior art used into pneumatic valve 3 of DN65, the setting of discharge pump has been reduced, thereby the maintenance and production management cost has been reduced, through the switch of controller 6 regulation and control pneumatic valve 3 and spray control pump 5 according to the on-the-spot condition, adopt pneumatic valve 3 to arrange the material and spray the washing to salt leg 9 inner wall, it is high not only to arrange the material heat exchange efficiency, area is little, material dwell time is short, it is difficult sticky, the problem of pipeline jam has still been avoided, thereby the system passive shutdown problem that arouses because of the pipeline jam in the use has been solved, economic loss because of passive shutdown arouses has been retrieved greatly, among the guarantee MVR vaporization system, the transport of material and the stationarity and the continuity of the solid-liquid mixture operation of control crystal.

The discharge outlet of the crystallization separator 1 is higher than that of the thickener 4, and the crystallization separator discharges materials by utilizing gravitational potential energy, so that the crystallization separator saves electric energy compared with a discharge pump 7 in the prior art.

The side of the spray header 8 is uniformly provided with a plurality of spray ports 10 at intervals, so that the inner walls of the salt legs 9 can be uniformly washed, and deposition blockage is avoided.

The crystal conveying pipeline 2 is made of stainless steel materials, is easy to manufacture, is not easy to damage, has the advantages of high strength, high temperature resistance and corrosion resistance, and is more suitable for being used for MVR system wastewater treatment compared with the existing carbon steel pipeline.

The working principle is as follows:

the MVR system is evaporated through a heat exchanger, and waste water materials are heated by fresh steam so as to generate secondary steam and overflow. The waste water material heated by the steam is concentrated to become a supersaturated state, so that crystals in the waste water material grow. Supersaturated wastewater materials enter a forced heat exchanger through a forced circulation pump, and are continuously evaporated, concentrated and crystallized in such a circulating way, and finally enter a crystallization separator 1. The material of its supersaturation state, because of the influence of the difference in temperature, its crystal constantly grows the gathering, through the control of controller 6, deposit in salt leg 9 department after the crystal gathering in crystallization separator 1 is quantitative, spray control pump 5 under the control of controller 6, extract the mother liquor in crystallization separator 1 through spray piping 7, wash salt leg 9 inner wall, prevent that the crystallization from depositing and blockking the bin outlet, controller 6 control pneumatic valve 3 opens thereafter, carry its solid-liquid mixture who has the crystal to thick ware 4 from crystallization separator 1 through crystal conveying pipeline 2, pneumatic valve 3 closes afterwards, this is a cycle.

The above embodiments only express specific embodiments of the present application, and the description is specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which all belong to the protection scope of the present application.

Claims (4)

1. The utility model provides a MVR crystal separator discharge device, its characterized in that, including crystal separator (1), crystal pipeline (2) and stiff ware (4) that connect gradually, be provided with spray piping (7) on crystal separator (1), the feed liquor end of spray piping (7) is located crystal separator (1) inside upper and lower both sides with going out the liquid end respectively, it is provided with shower head (8) to go out the liquid end, the lower part of crystal separator (1) is provided with salt leg (9), the highest point parallel and level of shower head (8) and salt leg (9), be provided with spray control pump (5) on spray piping (7), be provided with pneumatic valve (3) on crystal pipeline (2), spray control pump (5) and pneumatic valve (3) electricity are connected with controller (6).

2. The MVR crystal separator discharge device according to claim 1, wherein the discharge opening of the crystal separator (1) is higher than the thickener (4).

3. The discharging device of MVR crystal separator according to claim 1, wherein said spray header (8) is provided with a plurality of spray openings (10) at regular intervals on its side.

4. The MVR crystal separator discharge device according to claim 1, wherein said crystal conveying pipe (2) is made of stainless steel material.

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