Evaporative crystallization treatment device for salt-containing sewage

Abstract

The device comprises a heating cabinet, a filtering cabinet, a steam cabinet and an evaporation disc, and is characterized in that the heating disc is arranged at the bottom of the heating cabinet, a cabinet door is arranged on the front side of the heating cabinet, an injection pipe is arranged on the top of the filtering cabinet close to the front side, and a water pumping pipe is arranged on the back side of the injection pipe. A filter screen is arranged between the injection pipe and the water pumping pipe, the top of the water pumping pipe is provided with a water pump, the water pumping pipe is provided with a nozzle below the top position of the heating cabinet, the front side of the steam cabinet is provided with a plurality of exhaust fans, and the back side of the steam cabinet is provided with an air outlet. According to the salt-containing sewage evaporative crystallization treatment device, sewage enters the filter cabinet from the injection pipe, penetrates through the filter screen and is pumped away by the water suction pump, and some solid impurities in the sewage are filtered and left on one side of the filter screen, so that large-particle impurities in the heating cabinet are removed, and salt crystals obtained through evaporation are purer.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an evaporation and crystallization treatment device for saline sewage. Background Art

[0002] The harm of solid waste pollution to the environment and human body cannot be ignored, including solid salt obtained by concentration and evaporation of industrial wastewater; since the above solid salt is characterized as hazardous waste, the national environmental protection department requires strict control over it; currently, enterprises dissolve solid waste salt, and then recycle the crystallized salt by evaporation and crystallization to realize the resource utilization of solid waste salt and reduce the pollution of solid waste salt to the environment. For this reason, corresponding salt-containing sewage evaporation and crystallization treatment devices have emerged, such as the prior art: CN209685354U, a salt-containing sewage evaporation and crystallization treatment device, comprising: A box body, a filter cloth pulley, an atomizing nozzle, a circulating water tank, a circulating water pump and an axial flow fan. A door for the filter cloth pulley to enter and exit is installed at the front of the box body, a plurality of atomizing nozzles are installed at the upper end of the box body, a filter cloth pulley is installed in the box body, a slide is provided at the bottom of the box body, the filter cloth pulley enters and exits the box body along the slide, a plurality of detachable filter cloth racks are installed on the filter cloth pulley, filter cloth is fixed on the filter cloth rack, the bottom of the box body is tilted downward to form a water receiving tank, an air outlet is opened on one side wall of the box body, an axial flow fan is installed at the air outlet, a plurality of air inlet holes are opened on the opposite side wall of the box body, and the bottom of the water receiving tank is connected to the circulating water tank through a drainage pipe.

[0003] There are other existing technologies:

[0004] CN209522605U, a high-salt and high-organic wastewater evaporation and crystallization system;

[0005] CN205347076U, a saline sewage treatment system.

[0006] The above-mentioned prior art mentioned a salty sewage evaporation and crystallization treatment device, which evaporates the salty sewage at high temperature to precipitate the salt in the sewage, thereby separating the sewage and the salt. However, the sewage is not filtered before evaporation, so the extracted salt may contain a large amount of impurities, the purity is not high, and it is difficult to use. Utility Model Content

[0007] The utility model aims to provide a salt-containing sewage evaporation crystallization treatment device to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a salt-containing sewage evaporation and crystallization treatment device, comprising a heating cabinet, a filtering cabinet, a steam cabinet and an evaporation plate, characterized in that: a filtering cabinet is arranged on the side of the heating cabinet, a steam cabinet is arranged on the back of the heating cabinet, a heating plate is arranged at the bottom of the heating cabinet, a heater is arranged at the bottom of the heating plate, an evaporation plate is arranged on the top of the heating plate, a cabinet door is arranged on the front of the heating cabinet, an injection pipe is arranged on the top of the filtering cabinet near the front, a water suction pipe is arranged on the back of the injection pipe, a filter screen is arranged between the injection pipe and the water suction pipe, the filter screen is installed inside the filtering cabinet, a water suction pump is arranged on the top of the water suction pipe, a nozzle is arranged on the water suction pipe below the top position of the heating cabinet, a plurality of exhaust fans are arranged on the front of the steam cabinet, the interior of the steam cabinet and the interior of the heating cabinet are connected through the exhaust fan, and an air outlet is opened on the back of the steam cabinet.

[0009] Preferably, a handle is provided on the top of the evaporation tray, and the handle is made of heat-insulating material.

[0010] Preferably, a slide rail is fixedly connected to the front of the heating cabinet below the cabinet door, and the slide rail is located below the evaporating plate.

[0011] Preferably, a hook is provided on one side of the cabinet door, a hanging plate is provided above the cabinet door, a window is provided at the top of the hanging plate near the front, and the hook can rotate.

[0012] Preferably, an observation window is provided above the hanging plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The salt-containing sewage evaporation and crystallization treatment device, after being treated by the filter cabinet, is sprayed onto the evaporation plate through the nozzle in atomization. The heating plate is heated by the heater to increase the temperature of the evaporation plate, and the water on the evaporation plate is evaporated. Finally, the salt crystals are left on the evaporation plate after vaporization, and the water is sucked away by the exhaust fan.

[0015] 2. In the salt-containing sewage evaporation and crystallization treatment device, the sewage enters the filter cabinet from the injection pipe, passes through the filter screen and is pumped away by the water pump. Some solid impurities in the sewage are filtered and left on one side of the filter screen, thereby removing large particles of impurities in the heating cabinet, making the salt crystals obtained by evaporation purer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of removing the evaporation plate of the utility model structure;

[0018] Figure 3It is a schematic diagram of the back side of the structure of the utility model;

[0019] Figure 4 It is a cross-sectional view of the structure of the utility model.

[0020] In the figure: 1. Heating cabinet; 2. Filter cabinet; 3. Steam cabinet; 4. Evaporating plate; 101. Heating plate; 102. Heater; 103. Cabinet door; 104. Hook; 105. Hanging plate; 106. Nozzle; 107. Observation window; 108. Slide rail; 201. Filter; 202. Injection pipe; 203. Suction pipe; 204. Suction pump; 301. Exhaust fan; 302. Air outlet; 401. Handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: See Figure 1 The utility model provides a technical solution: a device for evaporating and crystallizing saline wastewater.

[0023] Among them, a filter cabinet 2 is arranged on the side of the heating cabinet 1, a steam cabinet 3 is arranged on the back of the heating cabinet 1, a heating plate 101 is arranged at the bottom of the heating cabinet 1, a heater 102 is arranged at the bottom of the heating plate 101, an evaporating plate 4 is arranged on the top of the heating plate 101, and a cabinet door 103 is arranged on the front of the heating cabinet 1; an injection pipe 202 is arranged on the top of the filter cabinet 2 near the front, a water extraction pipe 203 is arranged on the back of the injection pipe 202, a filter net 201 is arranged between the injection pipe 202 and the water extraction pipe 203, and the filter net 201 is installed inside the filter cabinet 2, a water extraction pump 204 is arranged on the top of the water extraction pipe 203, and a nozzle 106 is arranged below the water extraction pipe 203 located at the top position of the heating cabinet 1, a plurality of exhaust fans 301 are arranged on the front of the steam cabinet 3, the interior of the steam cabinet 3 and the interior of the heating cabinet 1 are connected through the exhaust fan 301, and an air outlet 302 is opened on the back of the steam cabinet 3.

[0024] In this embodiment, sewage enters the filter cabinet 2 from the injection pipe 202, passes through the filter screen 201, and is pumped away by the water pump 204 through the water pumping pipe 203. Some solid impurities in the sewage are filtered by the filter screen 201 and are retained on one side of the filter screen 201, thereby achieving purification of some impurities in the sewage. The water pumped away by the water pumping pipe 203 is sprayed into the heating cabinet 1 through the nozzle 106, and falls on the evaporation plate 4 placed on the heating plate 101 by gravity. The heating plate 101 is heated by the heater 102, and the temperature of the heating plate 101 gradually increases, and the heat transfer The water on the evaporation tray 4 is heated, so that the liquid water turns into water vapor and evaporates. The water vapor floats into the air, and this part of the air is sucked away by starting the exhaust fan 301 and discharged from the air outlet 302. A corresponding collection device is connected to the outer side of the air outlet 302. The evaporated air may contain waste that needs to be processed separately. After evaporation is completed, the cabinet door 103 is flipped upward. The cabinet door 103 is fixed to the front of the heating cabinet 1 through a rotating shaft near the top. The cabinet door 103 is flipped upward to open the heating cabinet 1, and the crystallized salt on the collection surface of the evaporation tray 4 can be taken out.

[0025] A handle 401 is disposed on the top of the evaporation plate 4 and is made of a heat-insulating material.

[0026] In this embodiment, the main body of the evaporation plate 4 is made of heat-conducting metal, which can quickly transfer the temperature of the heating plate 101 to the evaporation plate 4, thereby evaporating the moisture on the evaporation plate 4, and the handle 401 is made of heat-insulating material. The operator wears heat-insulating gloves and grabs the handle 401 to remove the evaporation plate 4. The handle 401 is lower in temperature than the evaporation plate 4 to prevent burns.

[0027] The front of the heating cabinet 1 is fixedly connected with a slide rail 108 below the cabinet door 103 , and the slide rail 108 is located below the evaporation plate 4 .

[0028] In this embodiment, the slide rail 108 extends from the surface of the heating cabinet 1, and the evaporation tray 4 is pulled out from the surface of the heating tray 101. The evaporation tray 4 is completely pulled out from the surface of the heating tray 101 by moving a certain distance on the slide rail 108, making it more convenient for the operator to take out the evaporation tray 4.

[0029] A hook 104 is provided on one side of the cabinet door 103, a hanging plate 105 is provided above the cabinet door 103, a window is provided at the top of the hanging plate 105 near the front, and the hook 104 can rotate.

[0030] In this embodiment, the cabinet door 103 is flipped 90° with the rotating shaft as the center, the heating cabinet 1 is opened, the top of the cabinet door 103 is attached to the hanging plate 105, and the hook 104 passes through the window on the hanging plate 105. The skylight and the hook 104 are both long strips. The hook 104 is rotated so that the hook is placed on the hanging plate 105, thereby fixing the cabinet door 103. When the heating cabinet 1 is normally open, it is more convenient for the operator to take out the evaporating plate 4.

[0031] An observation window 107 is provided above the hanging plate 105 .

[0032] In this embodiment, glass is installed on the observation window 107 , and the operator can see the internal situation of the heating cabinet 1 through the observation window to judge the accumulation of salt crystals on the surface of the evaporation plate 4 .

[0033] Working principle: sewage enters the filter cabinet 2 from the injection pipe 202, passes through the filter 201 and is pumped away by the pump 204 through the pump pipe 203. Some solid impurities in the sewage are filtered by the filter 201 and left on one side of the filter 201, thereby purifying some impurities in the sewage. The water pumped away by the pump pipe 203 is sprayed in the heating cabinet 1 through the nozzle 106, and falls on the evaporation plate 4 placed on the heating plate 101 by gravity. The heating plate 101 starts heating through the heater 102. The temperature of the heating plate 101 gradually increases, and the heat is conducted to the evaporation plate 4, thereby heating the water on the evaporation plate 4, so that the liquid water turns into water vapor and evaporates. The water vapor floats into the air, and this part of the air is sucked away by starting the exhaust fan 301 and discharged from the air outlet 302. After evaporation is completed, the cabinet door 103 is flipped upward, and the hook 104 is rotated to fix the cabinet door 103 on the hanging plate 105, and the evaporation plate 4 is pulled out from the surface of the heating plate 101, and the salt crystals on the surface of the evaporation plate 4 are sorted and collected.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A salt-containing sewage evaporation and crystallization treatment device, comprising a heating cabinet (1), a filter cabinet (2), a steam cabinet (3) and an evaporation plate (4), characterized in that: A filter cabinet (2) is arranged on the side of the heating cabinet (1), a steam cabinet (3) is arranged on the back of the heating cabinet (1), a heating plate (101) is arranged on the bottom of the heating cabinet (1), a heater (102) is arranged on the bottom of the heating plate (101), an evaporation plate (4) is arranged on the top of the heating plate (101), a cabinet door (103) is arranged on the front of the heating cabinet (1), an injection pipe (202) is arranged on the top of the filter cabinet (2) near the front, a water extraction pipe (203) is arranged on the back of the injection pipe (202), and the injection pipe (202) is arranged on the back of the injection pipe (202). A filter screen (201) is arranged between the filter cabinet (2) and the water extraction pipe (203); the filter screen (201) is installed inside the filter cabinet (2); a water extraction pump (204) is arranged on the top of the water extraction pipe (203); a nozzle (106) is arranged below the water extraction pipe (203) located at the top of the heating cabinet (1); a plurality of exhaust fans (301) are arranged on the front of the steam cabinet (3); the interior of the steam cabinet (3) and the interior of the heating cabinet (1) are connected through the exhaust fans (301); and an air outlet (302) is arranged on the back of the steam cabinet (3).

2. The device for treating saline wastewater by evaporation and crystallization according to claim 1, characterized in that: A handle (401) is provided on the top of the evaporation plate (4), and the handle (401) is made of a heat-insulating material.

3. The device for evaporating and crystallizing saline wastewater according to claim 1, characterized in that: The front of the heating cabinet (1) is located below the cabinet door (103) and is fixedly connected to a slide rail (108), and the slide rail (108) is located below the evaporation plate (4).

4. The device for treating saline wastewater by evaporation and crystallization according to claim 1, characterized in that: A hook (104) is provided on one side of the cabinet door (103), a hanging plate (105) is provided above the cabinet door (103), a window is provided at the top of the hanging plate (105) near the front, and the hook (104) is rotatable.

5. The device for treating saline wastewater by evaporation and crystallization according to claim 4, characterized in that: An observation window (107) is provided above the hanging plate (105).

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