Evaporation and concentration equipment

Abstract

The utility model relates to the technical field of evaporation and concentration, in particular to evaporation and concentration equipment which comprises an evaporation tank and a condensation tank, a liquid inlet mechanism is arranged on the outer side wall of the evaporation tank and comprises a premixing tank, and a liquid inlet pipe and a medicine inlet pipe are oppositely arranged on the outer side wall of the premixing tank and located on the upper portion of the premixing tank. A liquid inlet assembly communicated with the evaporation tank is arranged at the bottom of the premixing tank, a stirring assembly is arranged in the premixing tank, and the stirring assembly is used for driving the liquid inlet assembly to be opened at intervals, so that mixed liquid in the premixing tank enters the evaporation tank. Through the arrangement of the premixing tank and the stirring assembly, when a defoaming agent is added, the defoaming agent and a waste liquid can enter the premixing tank and are mixed under the action of the stirring assembly, and then the mixed liquid is added into the evaporation tank, so that the defoaming agent is well prevented from being concentrated in the evaporation tank, and the evaporation efficiency of the defoaming agent is improved. The defoaming effect of the defoaming agent on foam in the evaporation tank is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to evaporation concentration technical field, specifically, relate to a kind of evaporation concentration equipment. BACKGROUND

[0002] At present, evaporation concentration treatment wastewater is an effective wastewater treatment method, especially applicable to wastewater containing heavy metal pollutants, high salinity wastewater.Evaporation concentration treatment wastewater is by heating to evaporate solvent in wastewater, thereby concentrating solute in wastewater, to separate and purify the purpose.

[0003] For example, the patent with the announcement number CN217578348U discloses a kind of evaporation tank with demister and evaporation concentration equipment, although it is by increasing the oblique demister with hydrophilic coating in evaporation tank, sewage foam and small water drops and water vapor are efficiently gas-liquid separated, to prevent sewage foam and small water drops from entering condensing tank to pollute condensate, to reach the purpose of improving the purity of the separated substance and meeting condensate recycling use standard;But in actual use, to improve the elimination effect of foam in evaporation tank, defoaming agent is added into evaporation tank through sewage inlet, however, defoaming agent is added into evaporation tank by this way, which can cause defoaming agent to be relatively concentrated, thereby affecting the elimination effect of foam in evaporation tank. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of evaporation concentration equipment to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of evaporation concentration equipment, including evaporation tank and condensing tank, heating coil is provided in evaporation tank, condensing coil is provided in condensing tank, evaporation tank and condensing tank are connected by communicating pipe, the outer side wall of evaporation tank is equipped with liquid inlet mechanism, liquid inlet mechanism includes premix tank, the outer side wall of premix tank and the upper part are oppositely equipped with liquid inlet pipe and medicine inlet pipe, the bottom of premix tank is equipped with liquid inlet assembly connected with evaporation tank, premix tank is equipped with stirring assembly, stirring assembly is used to drive liquid inlet assembly to open at intervals, so that mixed liquid in premix tank enters evaporation tank.

[0007] Further, stirring assembly includes stirring shaft rotatablely arranged in premix tank, stirring shaft is uniformly provided with stirring rod on the outer side wall.

[0008] Further, the liquid inlet assembly comprises a liquid inlet pipe detachably mounted at the bottom end of the premixing tank, a piston column extending into the premixing tank is arranged in the liquid inlet pipe by a spring, a flow channel is arranged in the piston column, a notch communicating with the flow channel is arranged on the outer side wall of the piston column, and the spring is used for pushing the piston column to move upward to open the notch; a driving member for cooperating with the stirring shaft is arranged at the bottom of the premixing tank, and the driving member is used for driving the piston column to move up and down at intervals to realize the opening and closing of the notch.

[0009] Further, the driving member comprises a mounting ring, a rotating shaft connected with the stirring shaft is arranged on the mounting ring, a first gear is arranged on the rotating shaft, a second gear rotatably fixed on the lower side of the mounting ring is arranged, the second gear is arranged in meshing with the first gear, a tooth ring rotatably arranged on the lower side of the mounting ring is arranged, and the tooth ring is arranged in meshing with the second gear; and opposite resistance rods are arranged on the side of the tooth ring.

[0010] A resistance ring is arranged on the upper end surface of the piston column along the circumference thereof, the resistance rods abut on the resistance ring to realize the closing of the notch, a groove is oppositely arranged on the resistance ring, the resistance rods slide into the groove to realize the opening of the notch, guide inclined surfaces are arranged on the two side walls of the groove, and the tooth ring is rotated to drive the resistance rods to slide into or out of the groove along the guide inclined surfaces to realize the opening and closing of the notch.

[0011] Further, a motor for driving the stirring shaft to rotate is arranged at the top of the premixing tank.

[0012] Further, the rotating shaft is arranged through the mounting ring, a rotating disc is arranged at the upper end of the rotating shaft, a clamping groove is arranged on the upper side of the rotating disc, and a clamping block capable of being clamped into the clamping groove is arranged at the lower end of the stirring shaft.

[0013] Further, the premixing tank is arranged with an opening at the lower end, and a lower mounting ring part is formed by extending outwardly from the outer side wall of the premixing tank at the opening at the lower end; an upper mounting ring part is formed by extending outwardly from the upper end of the liquid inlet pipe, and the lower mounting ring part and the upper mounting ring part are connected by bolts.

[0014] Compared with the prior art, the premixing tank and the stirring assembly are arranged, so that when the defoaming agent is added, the defoaming agent and the waste liquid can enter the premixing tank, and the mixed liquid after mixing is added into the evaporation tank, thereby preferably avoiding the defoaming agent from being concentrated in the evaporation tank and affecting the defoaming effect of the defoaming agent on the foam in the evaporation tank.

[0015] 1、The premixing tank and the stirring assembly are arranged, so that when the defoaming agent is added, the defoaming agent and the waste liquid can enter the premixing tank, and the mixed liquid after mixing is added into the evaporation tank, thereby preferably avoiding the defoaming agent from being concentrated in the evaporation tank and affecting the defoaming effect of the defoaming agent on the foam in the evaporation tank.

[0016] 2. The utility model discloses, through the stirring subassembly drive liquid inlet subassembly interval open, can make the defoaming agent and waste liquid that enter the premixing jar mix, and make the mixed liquid after mixing can flow into the evaporation jar when the liquid inlet subassembly opens, to guarantee the defoamer and waste liquid mix after adding in the evaporation jar, to improve the defoaming effect of defoaming agent. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of one evaporation concentration equipment in the utility model.

[0018] Figure 2 It is the structure schematic drawing of liquid inlet mechanism in the utility model.

[0019] Figure 3 It is the sectional view schematic drawing of liquid inlet mechanism in the utility model.

[0020] Figure 4 It is the half cut structure schematic drawing of liquid inlet subassembly in the utility model.

[0021] Figure 5 It is one of structure schematic drawing of driving part in the utility model.

[0022] Figure 6 It is the structure schematic drawing of driving part in the utility model.

[0023] The meaning of each reference numeral in the drawing is as follows: 100, evaporation jar;101, communication pipe;102, liquid discharge pipe;103, observation window;110, condensation jar;120, premixing jar;130, compressor;140, vacuum pump;

[0024] 201, liquid inlet pipe;202, medicine inlet pipe;203, lower mounting ring part;210, motor;220, liquid inlet subassembly;

[0025] 310, stirring shaft;311, stirring rod;320, spring;330, piston column;331, flow channel;340, mounting ring frame;

[0026] 401, notch;410, abutment ring;411, groove;421, circular table part;4211, upper mounting ring part;422, circular pipe part;4221, lapping ring;423, guide pipe;

[0027] 510, rotating shaft;511, first gear;520, second gear;530, gear ring;531, abutment rod;610, rotating disc;611, clamping groove. DETAILED DESCRIPTION

[0028] For further understanding the contents of the utility model, the utility model is described in detail in combination with the drawings and examples. It should be understood that the examples only explain the utility model and are not limited.

[0029] The following is in conjunction with the appendix Figures 1-6 This embodiment will be described in further detail.

[0030] like Figure 1 As shown, an evaporation and concentration device in this embodiment includes an evaporator 100 and a condenser 110. The evaporator 100 is equipped with a heating coil, and the condenser 110 is equipped with a condensing coil. The evaporator 100 and the condenser 110 are connected by a connecting pipe 101. The evaporator 100 has a water vapor outlet on its outer wall at the top, and the condenser 110 has a water vapor inlet on its outer wall at the top. The connecting pipe 101 connects the water vapor outlet and the water vapor inlet.

[0031] Specifically, the outer wall of the evaporator 100 is provided with a liquid inlet mechanism, which is used to allow waste liquid to enter the evaporator 100. The heating coil is used to heat the waste liquid in the evaporator 100, causing it to evaporate and generate water vapor. The water vapor enters the condenser 110 through the connecting pipe 101. The condenser coil is used to connect to the compressor 130. The compressor 130 is used to supply flowing refrigerant into the condenser coil, so that the water vapor entering the condenser 110 is condensed to form condensate, thereby completing the evaporation and concentration of the waste liquid.

[0032] In actual use, a drain pipe is installed at the bottom of the condenser 110, and a vacuum pump 140 is connected to the drain pipe. The vacuum pump 140 is used to extract the condensate in the condenser 110. At the same time, it can generate negative pressure in the evaporator 100 and the condenser 110, thereby reducing the boiling point of the waste liquid in the evaporator 100 and improving the evaporation efficiency of the waste liquid.

[0033] Specifically, in order to discharge the concentrated waste liquid in the evaporator 100, in this embodiment, a drain pipe 102 is provided at the bottom of the evaporator 100, and a switch valve is provided on the drain pipe 102.

[0034] In order to facilitate observation of the working status inside the evaporator 100, in this embodiment, an observation window 103 is provided on the outer wall of the evaporator 100.

[0035] Combination Figure 2 and Figure 3 As shown, in this embodiment, the liquid inlet mechanism includes a premixing tank 120. An inlet pipe 201 and a drug inlet pipe 202 are provided opposite each other on the outer side wall of the premixing tank 120 and located at the top. A liquid inlet assembly 220 communicating with an evaporator 100 is provided at the bottom of the premixing tank 120. A stirring assembly is provided inside the premixing tank 120. The stirring assembly is used to drive the liquid inlet assembly 220 to open and close intermittently so that the mixture in the premixing tank 120 enters the evaporator 100.

[0036] In the embodiment, the premixing tank 120 is mounted on the outer sidewall of the evaporation tank 100 through the mounting frame, and in actual use, the liquid inlet pipe 201 is used for allowing the waste liquid to enter the premixing tank 120, and the medicine inlet pipe 202 is used for allowing the defoaming agent to enter the premixing tank 120, wherein the stirring assembly is used for stirring the waste liquid and the defoaming agent in the premixing tank 120 to allow the two to be mixed;

[0037] The premixing tank 120 is mounted on the outer sidewall of the evaporation tank 100 through the mounting frame, and in actual use, the liquid inlet pipe 201 is used for allowing the waste liquid to enter the premixing tank 120, and the medicine inlet pipe 202 is used for allowing the defoaming agent to enter the premixing tank 120, wherein the stirring assembly is used for stirring the waste liquid and the defoaming agent in the premixing tank 120 to allow the two to be mixed;

[0038] In combination with Figure 3 As shown in the figure, in the embodiment, the stirring assembly includes a stirring shaft 310 rotatably arranged in the premixing tank 120, and stirring rods 311 are uniformly arranged on the outer sidewall of the stirring shaft 310.

[0039] In the embodiment, a motor 210 for driving the stirring shaft 310 to rotate is arranged at the top of the premixing tank 120, the stirring shaft 310 is driven to rotate by the motor 210, and in turn the stirring rods 311 are driven to rotate, thereby stirring and mixing the waste liquid and the defoaming agent added into the premixing tank 120.

[0040] In combination with Figure 4 As shown in the figure, in the embodiment, the liquid inlet assembly 220 includes a liquid inlet pipe member detachably mounted at the bottom end of the premixing tank 120, a piston column 330 extending into the premixing tank 120 is arranged in the liquid inlet pipe member through a spring 320, a flow channel 331 is arranged in the piston column 330, a notch 401 communicating with the flow channel 331 is arranged on the outer sidewall of the piston column 330, and the spring 320 is used for pushing the piston column 330 to move upward to open the notch 401; a driving member for cooperating with the stirring shaft 310 is arranged in the premixing tank 120 at the bottom, and the driving member is used for driving the piston column 330 to move up and down at intervals to realize the opening and closing of the notch 401.

[0041] In actual use, the liquid inlet pipe is funnel-shaped, including a circular table part 421 and a circular tube part 422, and the lower end opening of the circular tube part 422 is connected to the evaporation tank 100 through a pipe 423. In order to realize the installation of the liquid inlet assembly 220 at the lower end of the premixing tank 120, the lower end opening of the premixing tank 120 is provided, and the outer side wall of the premixing tank 120 and the lower end opening extend outward to form a lower mounting ring part 203. The upper end of the liquid inlet pipe extends outward to form an upper mounting ring part 4211, i.e., the upper end opening of the circular table part 421 extends outward to form the upper mounting ring part 4211. The lower mounting ring part 203 and the upper mounting ring part 4211 are connected by bolts, thereby preferably realizing the disassembly and assembly of the liquid inlet assembly 220 at the lower end of the premixing tank 120.

[0042] In the embodiment, the piston column 330 is arranged in the circular tube part 422 in a lifting manner. Specifically, a lap joint ring 4221 is arranged in the circular tube part 422, the outer side wall of the piston column 330 is in sliding sealing cooperation with the inner wall of the circular tube part 422, the lower end of the spring 320 abuts against the lap joint ring 4221, and the upper end abuts against the piston column 330, for pushing the piston column 330 to move upward, so that the upper end of the piston column 330 extends out of the circular tube part 422. At this time, the notch 401 is opened, so that the mixed liquid in the premixing tank 120 can flow into the flow channel 331 through the notch 401. Due to the lower end opening of the flow channel 331, the mixed liquid can enter the evaporation tank 100 through the flow channel 331 and the pipe 423.

[0043] The driving part is arranged, so that the rotation of the stirring shaft 310 can drive the driving part to work, and the driving part can drive the piston column 330 to lift in an interval manner to realize the opening and closing of the notch 401 in an interval manner.

[0044] In combination with Figure 5 As shown in the figure, the driving part includes a mounting ring frame 340, the mounting ring frame 340 is provided with a rotating shaft 510 connected with the stirring shaft 310, the rotating shaft 510 is provided with a first gear 511, the lower side of the mounting ring frame 340 is fixedly provided with a second gear 520 which can rotate, the second gear 520 is arranged in meshing cooperation with the first gear 511, the lower side of the mounting ring frame 340 is provided with a tooth ring 530 which can rotate, the tooth ring 530 is arranged in meshing cooperation with the second gear 520, and the side of the tooth ring 530 is oppositely provided with an abutting rod 531.

[0045] The upper end surface of the piston column 330 is provided with an abutting ring 410 along the circumference thereof, the abutting rod 531 abuts against the abutting ring 410 when the abutting rod 531 is arranged in meshing cooperation with the second gear 520, and the tooth ring 530 is arranged in meshing cooperation with the second gear 520, and the side of the tooth ring 530 is oppositely provided with an abutting rod 531.

[0046] In actual use, the mounting ring 340 is fixedly installed at the lower end of the premixing tank 120 by welding, the rotating shaft 510 is rotatably installed on the mounting ring 340 through a bearing, the first gear 511 is fixedly installed at the lower end of the rotating shaft 510, the mounting shaft is fixedly installed on the lower side of the mounting ring 340, the second gear 520 is rotatably installed on the corresponding mounting shaft through a bearing, so as to realize the rotation of the second gear 520 on the lower side of the mounting ring 340, the bearing seat is installed on the lower side of the mounting ring 340, the bearing is installed in the bearing seat, and the gear ring 530 is installed on the bearing, so as to realize the rotation of the gear ring 530 on the lower side of the mounting ring 340. Thus, the rotation of the rotating shaft 510 can drive the first gear 511 and the second gear 520 to rotate the gear ring 530.

[0047] Through the above structure, the rotation of the gear ring 530 can drive the abutting rod 531 to slide into or out of the groove 411 along the guide slope. When the abutting rod 531 slides into the groove 411, the spring 320 pushes the piston column 330 to move upward, so that the notch 401 is opened. When the abutting rod 531 slides out of the groove 411 and abuts against the upper side of the abutting ring 410, the piston column 330 is pushed to retract into the circular tube portion 422, so that the inner wall of the circular tube portion 422 blocks the notch 401, and the notch 401 is closed. Therefore, when the gear ring 530 continuously rotates under the action of the stirring shaft 310, the interval opening and closing of the notch 401 can be realized.

[0048] It should be noted that the gear ratio between the first gear 511, the second gear 520 and the gear ring 530 in the embodiment can be designed according to actual conditions, so that the rotation of the stirring shaft 310 drives the rotating shaft 510 to rotate multiple turns, and drives the gear ring 530 to rotate half a turn, so that the liquid inlet assembly 220 is opened and closed once. In the time period in which the stirring shaft 310 drives the rotating shaft 510 to rotate multiple turns, the defoaming agent and the waste liquid in the premixing tank 120 are mixed. The groove 411 has a certain curvature, so that the liquid inlet assembly 220 has a certain interval when it is opened and closed once, so that the mixed liquid in the premixing tank 120 can flow into the evaporation tank 100 within the time interval. In actual use, the flow rates of the liquid inlet pipe 201, the medicine inlet pipe 202 and the conduit 423 through the notch 401 can be designed, so that the total amount of the mixed liquid in the premixing tank 120 can flow into the evaporation tank 100 within the interval time in which the liquid inlet assembly 220 is opened and closed once.

[0049] In the embodiment, the liquid inlet assembly 220 is combined with the premixing tank 120. Figure 6As shown, the rotating shaft 510 is arranged through the mounting ring frame 340, and the upper end of the rotating shaft 510 is provided with a rotating disc 610, the upper side of the rotating disc 610 is provided with a clamping groove 611, and the lower end of the stirring shaft 310 is provided with a clamping block which can be clamped into the clamping groove 611.

[0050] Through the above structure, when the mounting ring frame 340 is installed, the clamping block is first clamped into the clamping groove 611, and then the mounting ring frame 340 is welded and installed, thereby preferably realizing the connection between the rotating shaft 510 and the stirring shaft 310, so that the rotation of the stirring shaft 310 can drive the rotation of the rotating shaft 510.

[0051] In actual use, the motor 210 is started, waste liquid is added into the premixing tank 120 through the liquid inlet pipe 201, the liquid inlet assembly 220 is opened and closed at intervals, and the waste liquid is added into the evaporation tank 100 for evaporation and concentration treatment.

[0052] When it is necessary to add a defoaming agent into the evaporation tank 100, the defoaming agent is added into the premixing tank 120 through the medicine inlet pipe 202, at this time, the motor 210 drives the stirring assembly to stir and mix the defoaming agent and the waste liquid added into the premixing tank 120, and at the same time, the mixed liquid is added into the evaporation tank 100 for evaporation and concentration treatment when the liquid inlet assembly 220 is opened and closed at intervals, so as to avoid that the defoaming agent is directly added into the evaporation tank 100, which causes the defoaming agent to be relatively concentrated and affects the defoaming effect.

[0053] In summary, the above is only a preferred embodiment of the utility model, and any change and modification made according to the patent application scope of the utility model should belong to the coverage range of the utility model patent.

Claims

1. An evaporation concentration device comprising an evaporation tank (100) and a condensation tank (110), the evaporation tank (100) being provided with a heating coil, the condensation tank (110) being provided with a condensation coil, the evaporation tank (100) and the condensation tank (110) being connected by a communication pipe (101), characterized in that: The outer side wall of the evaporation tank (100) is provided with a liquid inlet mechanism, which comprises a premixing tank (120). The outer side wall of the premixing tank (120) is oppositely provided with a liquid inlet pipe (201) and a medicine inlet pipe (202) at the upper portion. The bottom portion of the premixing tank (120) is provided with a liquid inlet assembly (220) connected to the evaporation tank (100). The premixing tank (120) is provided with a stirring assembly. The stirring assembly is used to drive the liquid inlet assembly (220) to open at intervals, so that the mixed liquid in the premixing tank (120) enters the evaporation tank (100).

2. An evaporation concentration apparatus according to claim 1, wherein: The stirring assembly comprises a stirring shaft (310) rotatably arranged in the premixing tank (120). The outer side wall of the stirring shaft (310) is uniformly provided with stirring rods (311).

3. An evaporation concentration apparatus according to claim 2, wherein: The liquid inlet assembly (220) comprises a liquid inlet pipe piece detachably arranged at the bottom end portion of the premixing tank (120). The liquid inlet pipe piece is provided with a piston column (330) extending into the premixing tank (120) by a spring (320). The piston column (330) is provided with a flow channel (331). The outer side wall of the piston column (330) is provided with a notch (401) connected to the flow channel (331). The spring (320) is used to push the piston column (330) to move upward to open the notch (401). The bottom portion of the premixing tank (120) is provided with a driving piece matched with the stirring shaft (310). The driving piece is used to drive the piston column (330) to lift at intervals to realize the opening and closing of the notch (401).

4. An evaporation concentration apparatus according to claim 3, wherein: The driving piece comprises a mounting ring (340). The mounting ring (340) is provided with a rotating shaft (510) connected to the stirring shaft (310). The rotating shaft (510) is provided with a first gear (511). The lower side of the mounting ring (340) is fixedly provided with a rotatable second gear (520). The second gear (520) is meshed with the first gear (511). The lower side of the mounting ring (340) is provided with a rotatable gear ring (530). The gear ring (530) is meshed with the second gear (520). The side of the gear ring (530) is oppositely provided with a resisting rod (531). The upper end surface of the piston column (330) is provided with a resisting ring (410) along the circumferential direction. When the resisting rod (531) abuts against the resisting ring (410), the resisting rod (531) is used to realize the closing of the notch (401). The resisting ring (410) is oppositely provided with a groove (411). When the resisting rod (531) slides into the groove (411), the resisting rod (531) is used to realize the opening of the notch (401). The two side walls of the groove (411) are provided with guide inclined surfaces. The gear ring (530) is rotated to drive the resisting rod (531) to slide into or out of the groove (411) along the guide inclined surfaces to realize the opening and closing of the notch (401).

5. An evaporation concentration apparatus according to claim 2, wherein: The top portion of the premixing tank (120) is provided with a motor (210) used to drive the stirring shaft (310) to rotate.

6. An evaporation concentration apparatus according to claim 4, wherein: The rotating shaft (510) penetrates through the mounting ring (340). The upper end portion of the rotating shaft (510) is provided with a rotating disc (610). The upper side of the rotating disc (610) is provided with a clamping groove (611). The lower end portion of the stirring shaft (310) is provided with a clamping block clamped into the clamping groove (611).

7. An evaporation concentration apparatus according to claim 1, wherein: The premixing tank (120) is provided with a lower end opening, and an outer side wall of the premixing tank (120) extends outward at the lower end opening to form a lower mounting ring portion (203); an upper end portion of the liquid inlet pipe extends outward to form an upper mounting ring portion (4211), and the lower mounting ring portion (203) and the upper mounting ring portion (4211) are connected through bolts.

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