CN209835851U

CN209835851U - Waste cutting fluid purifying device

Info

Publication number: CN209835851U
Application number: CN201920609179.9U
Authority: CN
Inventors: 许芝; 费庆志; 费洪剑; 范文新; 肖经伦; 邹之本
Original assignee: Dalian Jiaotong University
Current assignee: Dalian Jiaotong University
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2019-12-24
Anticipated expiration: 2029-04-30

Abstract

The utility model relates to a machining waste water treatment technical field specifically discloses a useless cutting liquid purifier, including useless cutting fluid collecting box, useless cutting fluid inlet tube, the sewage pump, useless cutting fluid outlet pipe, and a housing, the electrode group, DC power supply, first baffle, the second baffle, the third baffle, float the oil sludge collecting vat, go out the liquid collecting pipe, the scroll pump, gas delivery pipe, ozone generator, the container water pipe, first drain pipe, go out the liquid collecting box, the second drain pipe, the alkali lye conveyer pipe, the alkali lye measuring pump, the alkali lye case, the emulsion conveyer pipe, the emulsion measuring pump, the emulsion case, the antirust agent conveyer pipe, the antirust agent measuring pump, the antirust agent case, the blender, the third drain pipe, the mixed reaction case, the mixer, float oil collection weir and fourth drain pipe. The utility model discloses can utilize electrolysis and condense the principle, carry out multiple physicochemical action such as redox, neutralization, condensation, air supporting separation to pollutant in the waste water, effectual completion sewage treatment rapidly.

Description

Waste cutting fluid purifying device

Technical Field

The utility model relates to a machining waste water treatment technical field especially relates to a useless cutting liquid purifier.

Background

In the modern metal processing process, the emulsified cutting fluid is an industrial fluid used for improving the cutting processing effect, and the emulsified cutting fluid has good cooling, lubricating, rust preventing, corrosion preventing, cleaning and other functions and is widely applied. In the use process, the emulsified cutting fluid is decomposed to be deteriorated to various degrees, resulting in performance degradation, and therefore, the emulsified cutting fluid is periodically replaced with a new one.

With the rapid development of the industry, the discharge amount of the oily sewage is increasing day by day. Besides the harm of common oily wastewater, the waste emulsion has the advantages that the mechanical oil is highly dispersed in water due to the action of the surfactant, animals, plants and aquatic organisms can absorb the waste emulsion more easily, the surfactant is harmful to the organisms, and some water-insoluble toxic substances can be dissolved and can be discharged after the waste emulsion needs to be treated and reaches the locally specified wastewater treatment standard. China still does not well treat oily wastewater with high concentration and serious emulsification discharged in mechanical processing. Mainly because the emulsion has higher and higher stability and is difficult to break emulsion along with the improvement of the technology. The treatment of the waste water at home and abroad mainly uses the treatment technologies of chemical demulsification, medicament electrolysis, activated carbon adsorption or ultrafiltration (or reverse osmosis). The method has the characteristics of low requirement on the quality of raw water, simple treatment process and equipment, convenient operation, low energy consumption, suitability for treating waste emulsion of large, medium and small enterprises and the like, and is generally applied.

Because the cutting fluid can cause pollution and damage to the environment and human bodies, the use of the cutting fluid and the treatment of waste liquid are increasingly restricted by environmental regulations. Research and popularization of effective treatment equipment and treatment technology for cutting fluid wastewater become an important subject of cutting fluid wastewater application research.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a useless cutting fluid purifier to a system that can effective processing cutting fluid waste water is provided.

In order to solve the technical problem, the utility model provides a waste cutting fluid purifier, including waste cutting fluid collecting box, waste cutting fluid inlet tube, the sewage pump, waste cutting fluid outlet pipe, and a housing, the electrode group, DC power supply, first baffle, the second baffle, the third baffle, the oil sludge collecting vat floats, go out the liquid collecting pipe, the scroll pump, the gas delivery pipe, ozone generator, the container water pipe, first drain pipe, go out the liquid collecting box, the second drain pipe, the alkali lye conveyer pipe, the alkali lye measuring pump, the alkali lye case, the emulsion conveyer pipe, the emulsion measuring pump, the emulsion case, the antirust agent conveyer pipe, the antirust agent measuring pump, the antirust agent case, the blender, the third drain pipe, the mixed reaction case, the mixer, oil sludge collecting weir and fourth drain pipe; one end of the waste cutting fluid inlet pipe is positioned in the waste cutting fluid collecting tank, the other end of the waste cutting fluid inlet pipe is connected with a water inlet of the sewage pump, a water outlet of the sewage pump is connected with the lower part of the left side of the shell through the waste cutting fluid outlet pipe, the electrode group is arranged in the shell, the positive pole and the negative pole of the direct-current power supply are respectively connected with the left side and the right side of the electrode group, the first baffle is vertically arranged at the lower end of the electrode group, the second baffle is vertically arranged at the right side of the electrode group, an opening is reserved between the lower end of the second baffle and the bottom of the shell, the third baffle is arranged at the right side of the second baffle, one end of the liquid outlet and collecting pipe is positioned at the lower part of the right side of the shell, the other end of the liquid outlet and collecting pipe is connected with a water inlet, one end of the container water pipe is connected with the water outlet of the vortex pump, the other end of the container water pipe is positioned at the lower part of the shell, the liquid outlet collecting box is connected with the liquid outlet collecting pipe through the first liquid outlet pipe, the mixer is connected with the liquid outlet collecting box through a second liquid outlet pipe for searching books, the lye tank is connected with the second liquid outlet pipe through the lye metering pump and the lye conveying pipe, the emulsion box is connected with the second liquid outlet pipe through the emulsion metering pump and the emulsion delivery pipe, the antirust agent box, is connected with the second liquid outlet pipe through the antirust agent metering pump and the antirust agent delivery pipe, the lower part of the mixing reaction box is connected with the mixer through the third liquid outlet pipe, and the upper part in the mixing reaction box is provided with a floating oil collecting weir, the output shaft of the stirrer is positioned in the mixing reaction box, and the middle part of the mixing reaction box is connected with the fourth liquid outlet pipe.

Preferably, the waste cutting fluid inlet pipe is provided with an adjusting valve.

Preferably, the waste cutting fluid outlet pipe is sequentially provided with an adjusting valve, a flowmeter, an adjusting valve, a sampling valve and a pressure gauge.

Preferably, one end of the water pipe of the container is positioned between the second partition plate and the third partition plate.

Preferably, the liquid outlet collecting pipe is provided with regulating valves on two sides of the joint with the first liquid outlet pipe, and the first liquid outlet pipe is provided with a regulating valve.

Preferably, be equipped with flowmeter and governing valve on the gas transmission pipe, be equipped with governing valve, flowmeter, governing valve, manometer and governing valve on the dissolved air outlet pipe in proper order.

Preferably, the second liquid outlet pipe is provided with adjusting valves on two sides of the joint of the alkali liquor conveying pipe, and the third liquid outlet pipe is provided with an adjusting valve.

Preferably, the bottom of the floating oil collecting weir is connected with a floating oil discharge pipe, and the floating oil discharge pipe is provided with a regulating valve.

Preferably, the bottom of the floating oil sludge collecting tank is connected with a floating oil sludge discharge pipe.

Preferably, the fourth liquid outlet pipe is provided with a regulating valve, and a new liquid tank is arranged at a water outlet of the fourth liquid outlet pipe.

The utility model discloses a useless cutting liquid purifier utilizes electrolysis and condenses the principle, carry out multiple physicochemical actions such as redox to the pollutant in the waste water, neutralization, condensation, air supporting separation, accomplish dirty (useless) water treatment rapidly, for other processing methods of emulsion cutting fluid, this cutting fluid purifies and prepares new liquid's method and device have area little, need not to add chemical agent, avoid secondary pollution, the treatment effeciency is stable, the full automatic control of operation washing, operating personnel professional requirement is low, advantages such as the processing speed is fast. The electrocoagulation method adopts a plurality of electrocoagulation purification areas divided by a plurality of parallel partition boards to flow in an up-down baffling water flow mode, can carry out electrocoagulation reaction for a longer time and enhances the treatment efficiency. The waste cutting fluid adopts a treatment method of effluent air floatation after electrocoagulation reaction, polymer generated by the coagulation reaction is sterilized and disinfected by utilizing an ozone air floatation separation mode and is separated into floating oil, larger solid and purified water, the water quality is improved without causing secondary pollution, and finally the floating oil and suspended matters are collected and treated by utilizing a floating oil sludge collecting tank, and the purified water is discharged. The liquid outlet collecting pipe and the dissolved air inlet collecting pipe which are separated by air floatation are shared, that is, the water inlet of the scroll pump can use the water purified after primary separation to realize the effect of recycling, the redundant water purified after air floatation use enters the liquid outlet collecting box through the liquid outlet pipe to be used for preparing new liquid for industrial cutting and recycling, and the effect of recycling both the air floatation and the prepared new liquid is realized.

Drawings

Fig. 1 is a schematic structural view of a waste cutting fluid purification apparatus according to an embodiment of the present invention.

In the figure, 1: a waste cutting fluid collection tank; 2: a waste cutting fluid inlet pipe; 3: adjusting a valve; 4: a sewage pump; 5: adjusting a valve; 6: a flow meter; 7: a sampling valve; 8: a pressure gauge; 9: a waste cutting fluid outlet pipe; 10: a housing; 11: an electrode group; 12: a direct current power supply; 13: a first separator; 14: a second separator; 15: a third partition plate; 16: a floating oil sludge collecting tank; 17: a partition plate; 18: a floating oil sludge discharge pipe; 19: a liquid outlet collection box; 20: a liquid outlet collecting pipe; 21: adjusting a valve; 22: adjusting a valve; 23: adjusting a valve; 24: a first liquid outlet pipe; 25: a scroll pump; 26: adjusting a valve; 27: a flow meter; 28: adjusting a valve; 29: a pressure gauge; 30: adjusting a valve; 31: a dissolved air outlet pipe; 32: an ozone generator; 33: adjusting a valve; 34: a gas flow meter; 35: a gas delivery pipe; 36: a second liquid outlet pipe; 37: adjusting a valve; 38: an alkaline liquid tank; 39: an alkali liquor metering pump; 40: an alkali liquor conveying pipe; 41: an emulsion tank; 42: an emulsion metering pump; 43: an emulsion delivery pipe; 44 a rust inhibitor tank; 45: a rust inhibitor metering pump; 46: a rust inhibitor delivery pipe; 47: adjusting a valve; 48: a mixer; 49: adjusting a valve; 50: a third liquid outlet pipe; 51: a mixing reaction box; 52: a blender; 53: a liquid outlet regulating valve; 54: a new liquid tank; 55: a floating oil collection weir; 56: a floating oil discharge pipe; 57: adjusting a valve; 58: and a fourth liquid outlet pipe.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1, the waste cutting fluid purification apparatus of the present embodiment includes: the device comprises a waste cutting fluid collecting box 1, a waste cutting fluid inlet pipe 2, a sewage pump 4, a waste cutting fluid outlet pipe 9, a shell 10, an electrode group 11, a direct current power supply 12, a first partition plate 13, a second partition plate 14, a third partition plate 15, a floating oil sludge collecting tank 16, a liquid outlet collecting pipe 20, a scroll pump 25, a gas conveying pipe 35, an ozone generator 32, a container water pipe 31, a first liquid outlet pipe 24, a liquid outlet collecting box 19, a second liquid outlet pipe 36, an alkali liquor conveying pipe 40, an alkali liquor metering pump 39, an alkali liquor box 38, an emulsion conveying pipe 43, an emulsion metering pump 42, an emulsion box 41, an antirust agent conveying pipe 46, an antirust agent metering pump 45, an antirust agent box 44, a mixer 48, a third liquid outlet pipe 50, a mixing reaction box 51, a stirrer 52, a floating oil collecting weir 55 and a fourth liquid outlet pipe 58.

One end of a waste cutting fluid inlet pipe 2 is positioned in a waste cutting fluid collecting tank 1, the other end is connected with a water inlet of a sewage pump 4, a water outlet of the sewage pump 4 is connected with the lower part of the left side of a shell 10 through a waste cutting fluid outlet pipe 9, an electrode group 11 is arranged in the shell 10, the positive pole and the negative pole of a direct current power supply 12 are respectively connected with the left side and the right side of the electrode group 11, a first baffle 13 is vertically arranged at the lower end of the electrode group 11, a second baffle 14 is vertically arranged at the right side of the electrode group 11, the lower end of the second baffle is provided with an opening with the bottom of the shell 10, a third baffle 15 is arranged at the right side of the second baffle 14, one end of a liquid outlet and collecting pipe 20 is positioned at the lower part of the right side of the shell 10, the other end is connected with a water inlet of a scroll pump 25, a floating oil sludge collecting, the other end is positioned at the lower part of the shell 10, the effluent collecting box 19 is connected with an effluent collecting pipe 20 through a first effluent pipe 24, a mixer 48 is connected with the effluent collecting box 19 through a second effluent pipe 36 for searching books, an alkaline liquid box 38 is connected with the second effluent pipe 36 through an alkaline liquid metering pump 39 and an alkaline liquid conveying pipe 40, an emulsion box 41 is connected with the second effluent pipe 36 through an emulsion metering pump 42 and an emulsion conveying pipe 43, an antirust agent box 44 is connected with the second effluent pipe 36 through an antirust agent metering pump 45 and an antirust agent conveying pipe 46, the lower part of a mixing reaction box 51 is connected with the mixer 48 through a third effluent pipe 50, a floating oil collecting weir 55 is arranged at the upper part in the mixing reaction box 51, the output shaft of a stirrer 52 is positioned in the mixing reaction box 51, and the middle part of the mixing reaction box 51 is connected with a fourth effluent pipe 58.

The waste cutting fluid inlet pipe 2 is provided with a regulating valve 3. The waste cutting fluid outlet pipe 9 is sequentially provided with an adjusting valve 5, a flowmeter 6, an adjusting valve 5, a sampling valve 7 and a pressure gauge 8. One end of the container water pipe 31 is located between the second partition 14 and the third partition 15. The two sides of the joint of the liquid outlet collecting pipe 20 and the first liquid outlet pipe 24 are respectively provided with a regulating valve 21 and a regulating valve 22, and the first liquid outlet pipe 24 is provided with a regulating valve 23. The gas delivery pipe 35 is provided with a flowmeter 34 and an adjusting valve 33, and the dissolved gas outlet pipe 31 is sequentially provided with an adjusting valve 26, a flowmeter 27, an adjusting valve 28, a pressure gauge 29 and an adjusting valve 30. The two sides of the joint of the second liquid outlet pipe 36 and the alkali liquor delivery pipe 40 are respectively provided with an adjusting valve 37 and an adjusting valve 47, and the third liquid outlet pipe 50 is provided with an adjusting valve 49. The bottom of the floating oil collecting weir 55 is connected with a floating oil discharge pipe 56, and the floating oil discharge pipe 56 is provided with a regulating valve 57. The bottom of the floating oil-mud collecting tank 16 is connected with a floating oil-mud discharging pipe 18. A baffle 17 may be provided between the sludge collection tank 16 and the effluent collection tank 19. An adjusting valve 53 is arranged on the fourth liquid outlet pipe 58, and a new liquid tank 54 is arranged at the water outlet of the fourth liquid outlet pipe 58.

The waste cutting fluid purification apparatus of the present embodiment substantially comprises, in functional areas: a sewage pump, a vortex pump, an electrocoagulation-flotation separation system and a new liquid preparation system.

The waste water in the waste cutting fluid collecting box 1 is communicated with one end of a waste water pump 4 through a waste cutting fluid inlet pipe 2 and a regulating valve 3, the other end of the waste water pump 4 is communicated with a waste cutting fluid outlet pipe 9, the waste cutting fluid outlet pipe 9 is sequentially connected with a regulating valve 5, a flowmeter 6, a sampling valve 7 and a pressure gauge 8, an outlet enters the bottom of an electrocoagulation reaction zone in an electrocoagulation air-flotation separation device 10 and enters the outer side of an anode partition plate of an electrode group in the electrocoagulation device, one end of a scroll pump 25 is communicated with a gas conveying pipe 35 and a liquid outlet collecting pipe 20, the gas conveying pipe 35 is connected with an ozone generator 32, a regulating valve 33 and a gas flowmeter 34, the liquid outlet collecting pipe 20 is connected with a regulating valve 21 and a regulating valve 22, the other end of the scroll pump 25 is communicated with a dissolved gas outlet pipe 31, the dissolved gas, an outlet of a dissolved air water outlet pipe 31 enters between an electrode group negative electrode partition plate 14 and an air flotation partition plate 15 in the device 10 and is mixed with electrocoagulation effluent water, the electrocoagulation air flotation separation system device 10 comprises an electrocoagulation system, an air flotation separation system and a floating oil collecting system, the electrocoagulation system consists of a direct current power supply 12, an electrode group 11 and 13 partition plates 14 of the electrode partition plates, the electrode group is connected with a positive electrode and a negative electrode of the direct current power supply, vertical parallel partition plates are arranged in the middle and on two sides of the electrode group, water flows in the vertical direction, enters from the bottom of the positive electrode, and finally flows out of the bottom of a; an inclined partition plate is arranged in the middle of the air floatation sterilization separation system, the lower end of the inclined partition plate is vertical to the bottom surface of the device, the upper end of the inclined partition plate is inclined at 60 degrees with the horizontal plane, and a dissolved steam outlet pipe is introduced into the bottom between the electrocoagulation negative electrode outer partition plate and the inclined partition plate; a liquid outlet collecting pipe (namely a dissolved air inlet collecting pipe) is arranged at the lower part of the space at the other side of the inclined clapboard, and the liquid outlet collecting pipe is connected with a liquid outlet collecting box which is communicated with the outside of the device by a valve; the upper part of the electrocoagulation-floatation separation device is provided with a floating oil-sludge collecting tank, the tank bottom is connected with a floating oil-sludge discharge pipe, the outer side of the floating oil-sludge collecting tank is separated from a liquid outlet collecting box by a partition plate, and the outer side of the liquid outlet collecting box is connected with a purified liquid outlet pipe. Wastewater enters the bottom of the electrocoagulation reaction zone and flows back to the electrode group through the partition plate, and under the action of the direct current power supply 12, the anodes of two electrolysis units of the electrocoagulation device generate oxidation reaction and the cathodes generate reduction reaction. In the anodic oxidation reaction, the metal anode is subjected to electrochemical action, is dissolved in water in an ionic state, and generates metal hydroxide through hydrolysis reaction, and the metal hydroxide is used as a flocculating agent to perform a coagulation effect on suspended matters and colloidal impurities in the wastewater; meanwhile, OH-ions in the wastewater discharge on the anode to generate oxygen, and the nascent oxygen has strong oxidation effect on organic and inorganic pollutants in the wastewater. In the reduction reaction of the cathode, metal ions acquire electrons on the cathode and are reduced, the electrons are separated out on the surface of the cathode, and some organic matters undergo the reduction reaction; h + is reduced into hydrogen after getting electrons, escapes in a micro-bubble mode, can be adhered to floccules and oil substances in the wastewater, reduces the specific gravity, floats to the water surface, and generates the air floatation effect. After electrocoagulation reaction, water enters an air floatation separation area from the bottom of a partition plate 14, and releases dense ultrafine ozone bubbles with an air dissolving and releasing system of a scroll pump 25 to generate a large amount of air-carrying flocs, the density difference between the air-carrying flocs and the density of cutting wastewater is large, the particle size of the air-carrying flocs is much larger than that of particles in original sewage, the air-carrying flocs can automatically rise to the top of equipment to form a floating oil sludge layer, meanwhile, ozone has the disinfection and sterilization effects, can effectively kill a large amount of bacteria such as anaerobic bacteria and the like bred in emulsion, and floating oil sludge is discharged through a floating oil sludge collection tank 16 and a floating oil sludge discharge pipe 18; the purified water after air floatation rises to the top end of the inclined clapboard 15 and then flows into the air floatation water purification area, and then rises into the liquid outlet collection box 19 through the liquid outlet pipe 24 by the bottom liquid outlet collection pipe 20 and the regulating valve 21/23.

The new liquid preparation system consists of a medicine adding system and a mixed reaction system; the purified water subjected to electrocoagulation-floatation separation flows from the liquid outlet collection box 19 to the purified liquid outlet pipe 36, the purified water in the purified liquid outlet pipe 36 is respectively mixed with three liquid medicines of alkali liquor, emulsion and antirust agent in the dosing system in sequence, then the mixed water enters the pipeline mixer 48 through the regulating valve 47, the mixed water enters the mixing reaction box 51 from the bottom through the conveying pipe 50 and is further mixed under the action of the stirrer 52, the floating oil in the box is discharged through the floating oil collection weir 53 and the floating oil discharge pipe 56 and the regulating valve 57, and the newly prepared cutting fluid flows into the new liquid box 54 from the new liquid outlet pipe 58. The dosing system comprises an alkali liquor dosing tank, an emulsion dosing tank and an antirust agent dosing tank, wherein the alkali liquor dosing tank, the emulsion dosing tank and the antirust agent dosing tank are respectively communicated with purified liquid outlet pipes through respective metering pumps and respective delivery pipes; mix reaction system and include the pipeline mixer, mix reaction box and new liquid case, mix the conveyer pipe that the bottom of the reaction box inserted the pipeline mixer rear end, inside is equipped with the mixer stirring, and the box upper end sets up floating oil collection weir and floating oil discharge pipe, installs the governing valve on the pipe, and box outside middle high connection S type drain pipe and governing valve, the drain pipe top is with incasement liquid level co-altitude, and the liquid outlet pipe mouth corresponds new liquid case, goes out the liquid and flows into in the new liquid incasement.

The lower part of the electrocoagulation-floatation separation system is also provided with a dissolved air inlet water collecting pipe communicated with the liquid outlet collecting pipe, which means that the inlet water of the vortex pump can use the clear liquid after the initial separation to realize the effect of recycling. Preferably, the electrocoagulation-floatation separation system comprises a plurality of electrocoagulation purification areas divided by a plurality of parallel partition plates, and meanwhile, water flows form up-and-down flow and flow out after being subjected to electrocoagulation for a plurality of times. Preferably, the bottoms of the electrocoagulation-floatation separation system and the new liquid preparation system are provided with supports.

The water outlet pipe of the sewage pump and the dissolved air outlet pipe of the vortex pump are respectively provided with a flowmeter, a pressure gauge and a control valve, the inlet of the air inlet pipe is also provided with a gas flowmeter for controlling the flow, all pipelines are respectively provided with a regulating valve, and the flow at each position is regulated according to the actual treatment capacity.

The working principle of the waste cutting fluid purification device of the embodiment is as follows:

electrocoagulation air flotation separation: waste water from a sewage tank is sucked into a sewage pump through a waste cutting fluid inlet pipe, enters the bottom of an electrocoagulation reaction zone in an electrocoagulation air-flotation separation device through a waste cutting fluid outlet pipe after passing through the sewage pump, and is subjected to condensation with pollutant particles in water by colloid generated by combination of cations generated by electrolysis of a soluble electrode (an iron electrode or an aluminum electrode) and OH- (hydroxyl anion) generated by water ionization after the electrode is electrified, and meanwhile, intermediate products (such as hydroxyl radicals and atomic oxygen) generated on the surface of an anode have a certain degradation effect on organic pollutants in the electrolysis process. The colloid suspended matters after electrocoagulation reaction and the wastewater enter an air floatation separation area from the bottom of a partition plate and collide and fuse with the dissolved steam water from a dissolved steam water outlet pipe of a vortex pump to generate a large amount of air-entrained flocs, the density of the air-entrained flocs is greatly different from that of the cutting wastewater, the particle diameter of the air-entrained flocs is much larger than that of particles in the original wastewater, and the air-entrained flocs can automatically rise to the top of equipment to form a floating oil sludge layer and are discharged through a floating oil sludge collecting tank and a floating oil sludge discharge pipe; meanwhile, the ozone has the effects of disinfection and sterilization, and can effectively kill a large number of thalli such as anaerobic bacteria and the like bred in the emulsion; the purified water after air floatation rises to the top end of the inclined clapboard, then flows into the air floatation water purification area, and rises into the liquid outlet collection box through the liquid outlet collection pipe at the bottom.

The new liquid preparation system comprises: purified water subjected to electrocoagulation-floatation separation flows to a purified liquid outlet pipe from a liquid outlet collecting box, the purified water in the liquid outlet pipe is sequentially and respectively mixed with three liquid medicines of alkali liquor, emulsion and antirust agent and then enters a pipeline mixer together to be fully mixed, the purified water enters the mixing reaction tank from the bottom of the mixing reaction tank and then is further stirred and mixed, floating oil in the tank is discharged through a floating oil collecting weir and a floating oil discharging pipe, and new cutting fluid flows to a new liquid tank from a new liquid outlet pipe.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a useless cutting liquid purifier, which is characterized in that, including useless cutting liquid collecting box (1), useless cutting liquid inlet tube (2), sewage pump (4), useless cutting liquid outlet pipe (9), shell (10), electrode group (11), DC power supply (12), first baffle (13), second baffle (14), third baffle (15), floating oil mud collecting vat (16), go out liquid collecting pipe (20), scroll pump (25), gas delivery pipe (35), ozone generator (32), container water pipe (31), first drain pipe (24), go out liquid collecting box (19), second drain pipe (36), alkali lye conveyer pipe (40), alkali lye metering pump (39), alkali lye case (38), emulsion conveyer pipe (43), emulsion metering pump (42), emulsion case (41), rust inhibitor conveyer pipe (46), rust inhibitor metering pump (45), A rust inhibitor box (44), a mixer (48), a third liquid outlet pipe (50), a mixing reaction box (51), a stirrer (52), a floating oil collecting weir (55) and a fourth liquid outlet pipe (58); one end of the waste cutting fluid inlet pipe (2) is positioned in the waste cutting fluid collecting box (1), the other end of the waste cutting fluid inlet pipe is connected with a water inlet of the sewage pump (4), a water outlet of the sewage pump (4) is connected with the lower part of the left side of the shell (10) through the waste cutting fluid outlet pipe (9), the electrode group (11) is arranged in the shell (10), the positive and negative poles of the direct current power supply (12) are respectively connected with the left side and the right side of the electrode group (11), the first baffle (13) is vertically arranged at the lower end of the electrode group (11), the second baffle (14) is vertically arranged at the right side of the electrode group (11), an opening is reserved between the lower end of the second baffle (14) and the bottom of the shell (10), the third baffle (15) is arranged at the right side of the second baffle (14), one end of the effluent collecting pipe (20) is positioned at the lower part, the other end of the water tank is connected with a water inlet of the vortex pump (25), a floating oil sludge collecting tank (16) is arranged at the upper part in the shell (10), the ozone generator (32) is connected with a gas inlet of the vortex pump (25) through the gas conveying pipe (35), one end of the container water pipe (31) is connected with a water outlet of the vortex pump (25), the other end of the container water pipe is positioned at the lower part of the shell (10), the liquid outlet collecting box (19) is connected with the liquid outlet collecting pipe (20) through the first liquid outlet pipe (24), the mixer (48) is connected with the liquid outlet collecting box (19) through a second liquid outlet pipe (36) for searching books, the alkali liquid tank (38) is connected with the second liquid outlet pipe (36) through the alkali liquid metering pump (39) and the alkali liquid conveying pipe (40), and the emulsion tank (41) is connected with the second liquid outlet pipe (36) through the emulsion metering pump (42) and the emulsion conveying pipe (43), antirust agent case (44), through antirust agent measuring pump (45) and antirust agent conveyer pipe (46) with second drain pipe (36) are connected, the lower part of mixing reaction case (51) is passed through third drain pipe (50) with blender (48) are connected, upper portion in mixing reaction case (51) is equipped with floating oil and collects weir (55), the output shaft of mixer (52) is located in mixing reaction case (51), the middle part of mixing reaction case (51) with fourth drain pipe (58) are connected.

2. The waste cutting fluid purification apparatus as claimed in claim 1, wherein said waste cutting fluid inlet pipe (2) is provided with a regulating valve.

3. The waste cutting fluid purification apparatus as claimed in claim 1, wherein said waste cutting fluid outlet pipe (9) is provided with a regulating valve, a flow meter, a regulating valve, a sampling valve and a pressure gauge in this order.

4. The used cutting fluid purification apparatus according to claim 1, wherein one end of the container water tube (31) is located between the second partition plate (14) and the third partition plate (15).

5. The used cutting fluid purification apparatus as set forth in claim 1, wherein said effluent collecting pipe (20) is provided with regulating valves on both sides of the junction with said first effluent pipe (24), said first effluent pipe (24) being provided with regulating valves.

6. The used cutting fluid purification apparatus as set forth in claim 1, wherein said gas delivery pipe (35) is provided with a flow meter and a regulating valve, and said dissolved gas outlet pipe (31) is provided with a regulating valve, a flow meter, a regulating valve, a pressure gauge and a regulating valve in this order.

7. The used cutting fluid purification apparatus as set forth in claim 1, wherein said second outlet pipe (36) is provided with an adjusting valve on both sides of the junction with said alkali fluid feed pipe (40), and said third outlet pipe (50) is provided with an adjusting valve.

8. The used cutting fluid purification apparatus as claimed in claim 1, wherein a floating oil discharge pipe (56) is connected to the bottom of the floating oil collection weir (55), and the floating oil discharge pipe (56) is provided with a regulating valve.

9. The used cutting fluid purification apparatus as claimed in claim 1, wherein a floating sludge drain pipe (18) is connected to the bottom of the floating sludge collection tank (16).

10. The used cutting fluid purification apparatus as claimed in claim 1, wherein an adjustment valve is provided on said fourth liquid outlet pipe (58), and a fresh fluid tank (54) is provided at a water outlet of said fourth liquid outlet pipe (58).