Multi-stage treatment device for copper phthalocyanine wastewater

Abstract

The invention relates to the technical field of copper phthalocyanine wastewater treatment, and discloses a copper phthalocyanine wastewater multi-stage treatment device, which comprises a filter tank for sequentially treating wastewater and filtering impurities, a multi-effect treatment tank for air stripping and flocculation treatment, and a settling tank for standing and settling, the discharge pipe and the waste discharge pipe are mounted in the middle of the bottom of the multi-effect treatment tank, a conduction pump assembly is fixed in the multi-effect treatment tank through a support, and the conduction pump assembly and the discharge pipe form a communicating vessel system for liquid discharge; the rotary connecting piece is rotationally mounted above the middle part of the multi-effect treatment tank through a bracket, and an aeration treatment net is connected to the rotary connecting piece in a through manner and is used for respectively realizing air stripping exhaust and flocculation replacement through air pressure and hydraulic pressure. According to the multistage treatment device for the copper phthalocyanine wastewater, efficient purification treatment of the wastewater is realized by utilizing treatment processes such as filtration, air stripping and flocculent precipitation, meanwhile, the purification treatment is high in efficiency and comprehensive in treatment, and residues of impurities and harmful substances are not easily caused.

Description

Technical Field

[0001] The invention relates to the technical field of copper phthalocyanine wastewater treatment, in particular to a multi-stage treatment device for copper phthalocyanine wastewater. Background Art

[0002] The copper phthalocyanine wastewater multi-stage treatment device is a device used to purify wastewater before it is discharged after copper phthalocyanine is used as a dye. It uses a multi-stage treatment process to remove impurities and harmful chemicals in the wastewater, so that the wastewater can be discharged after purification. During the use of the copper phthalocyanine solution, fibers and impurities in the fabric to be dyed will be mixed into it, causing contamination of the solution. Therefore, the copper phthalocyanine wastewater solution needs to be subjected to multiple treatments at the physical and chemical levels.

[0003] The existing copper phthalocyanine wastewater treatment generally adopts the stripping process, in which the copper phthalocyanine wastewater is sprayed out from top to bottom, and the gas material used for stripping is blown from bottom to top, and secondary gas phase material and secondary liquid phase material are formed by stripping. The gas phase and liquid phase are treated separately to achieve the effect of copper phthalocyanine wastewater treatment and purification, and wastewater that meets the discharge standard is formed, thereby avoiding problems such as environmental pollution caused by wastewater discharge. In the above-mentioned copper phthalocyanine wastewater treatment process, it is easy for the solid matter of impurities in the copper phthalocyanine wastewater to remain, resulting in omissions in the treatment in the mixed stripping process, requiring multiple repeated treatments, which is time-consuming and inefficient. At the same time, in the continuous wastewater treatment process, the presence of suspended impurities in the copper phthalocyanine wastewater will cause damage to the wastewater treatment equipment. At the same time, the cleaning effect of suspended impurities in the wastewater after multiple treatments is poor, and the quality of the purified wastewater to be discharged is low.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original copper phthalocyanine wastewater multi-stage treatment device. Summary of the Invention

[0005] The object of the present invention is to provide a multi-stage treatment device for copper phthalocyanine wastewater to solve the problem that the existing multi-stage treatment device for copper phthalocyanine wastewater proposed in the above background technology is prone to residual solid matter of impurities in the copper phthalocyanine wastewater, requiring multiple repetitive treatments, which is time-consuming, inefficient, and easily causes damage to the wastewater treatment equipment. At the same time, the cleaning effect of suspended impurities in the wastewater after multiple treatments is poor.

[0006] To achieve the above object, the present invention provides the following technical solution: a multi-stage treatment device for copper phthalocyanine wastewater, comprising a filter tank for filtering impurities, a multi-effect treatment tank for stripping and flocculation treatment, and a sedimentation tank for static sedimentation for sequentially treating wastewater; It also includes: a discharge pipe and a waste pipe, which are installed in the middle of the bottom of the multi-effect treatment tank, and a conduction pump assembly is fixed inside the multi-effect treatment tank through a bracket, and the conduction pump assembly and the discharge pipe form a communicating system for draining liquid; The rotating connector is rotatably mounted above the middle of the multi-effect treatment tank through a bracket, and the rotating connector is connected to an aeration treatment net in a through-type manner. The aeration treatment net realizes stripping and exhaust and flocculation replacement respectively through air pressure and hydraulic pressure.

[0007] Preferably, wastewater is transported between the filter tank and the multi-effect treatment tank via a pump pipe, wherein the filter tank is also provided with an auger assembly for cleaning floating waste.

[0008] Preferably, the upper end of the discharge pipe is funnel-shaped, wherein the conductive pump assembly is fixedly connected to the upper end of the discharge pipe, and the two are arranged in an "n"-shaped structure inside the multi-effect treatment tank, acting on the discharge of the treated wastewater in the middle layer of the multi-effect treatment tank.

[0009] Preferably, the aeration treatment network includes an outer frame for positioning, in which vertical pipe assemblies are fixed at equal intervals, and thin tubes for exhaust are connected to the outer walls of the vertical pipe assemblies in an inclined manner. At the same time, a valve is fixed to the lower end of the vertical pipe assembly, and elastic disruptors are connected between adjacent vertical pipe assemblies. The elastic disruptors are used for wastewater turbulence stripping and suspended impurity collection and treatment.

[0010] Preferably, the vertical pipe assembly is connected to the interior of the rotating connector through a connecting hose, wherein the interior of the rotating connector is hollow, and the hollow interior of the rotating connector is used for transporting gas and liquid.

[0011] Preferably, the capillaries are evenly distributed at equal intervals, wherein the inner diameter of the capillaries is smaller than the inner diameter of the vertical pipe assembly, and the central axis of the capillaries is inclined toward the liquid conveying direction inside the vertical pipe assembly.

[0012] Preferably, the elastic disruptor includes two spirally distributed spring members, a damping film is fixed between the two adjacent spring members, the damping film is arranged in a bowl-shaped structure, and a floating block is provided on the back of the damping film. In addition, a circulating pump assembly is also provided on the rotating connecting member for circulating the liquid in the multi-effect treatment tank and the vertical pipe assembly.

[0013] Preferably, a waste discharge channel and a pressure flushing assembly are also fixed on the multi-effect treatment tank. The pressure flushing assembly is located directly above the waste discharge channel, and a gap is reserved between the two. The gap is provided as a reserved space for the movement of the rotating connector. The pressure flushing assembly uses hydraulic pressure to achieve flushing and drainage of the rotating connector and the aeration treatment net thereon.

[0014] Preferably, the outer frame of the aeration treatment net and the middle part of the side wall of the rotating connector are hingedly connected; At the same time, the bowl-shaped damping film is divided into four equal sections in the middle section, and permanent magnets for magnetic adsorption and positioning are embedded in the sections.

[0015] Preferably, the middle part of the rotating connector has an inverted "T"-shaped structure, and the inverted "T"-shaped upper end of the rotating connector is driven to rotate by a motor gear assembly, and is connected to each other for rotation and penetration by a gas pumping assembly.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the multi-stage treatment device for copper phthalocyanine wastewater utilizes treatment processes such as filtration, stripping, and flocculation and sedimentation to achieve efficient purification of wastewater. At the same time, the purification process is efficient and comprehensive, and is unlikely to cause residual impurities and harmful substances. The specific effects are as follows: 1. Through the functions of the filter tank, multi-effect treatment tank and sedimentation tank, the wastewater is filtered, aerated, flocculated and salvaged, and separated by sedimentation, thereby cleaning and separating impurities and harmful substances in the wastewater to achieve the effect of multi-stage purification treatment; Furthermore, the use of the multi-effect treatment tank utilizes a rotating aeration treatment net, which aerates the wastewater solution through the discharge pipeline formed by the vertical pipe assembly and the capillary tube during movement, forming gas and liquid phase secondary substances, which can improve the uniformity of wastewater treatment. At the same time, the disturbance device formed by the elastic disruptor utilizes the physical properties of the agitation flow to make the mixing more uniform during the aeration and stripping of the wastewater, thereby improving the treatment efficiency. Furthermore, when the aeration stripping treatment process is closed and the flocculation sedimentation operation is carried out, when the aeration treatment net is driven to move by rotating the connecting piece, different movement rates will cause the elastic disruptor to extend and contract under the action of water resistance. Therefore, the continuous change of the movement rate can improve the mixing efficiency of the wastewater and the flocculant through the elastic disruptor. At the same time, under the action of the contraction of the elastic disruptor caused by the change of the movement rate from fast to slow, the impurities suspended in the wastewater after flocculation can be clamped in the elastic disruptor, which is convenient for the subsequent rotation of the connecting piece to drive the aeration treatment net to move and separate the suspended impurities from the wastewater.

[0017] 2. In the flocculation sedimentation treatment process, the circulating pump assembly is used to start the liquid circulation channel formed by the rotating connector and the vertical pipe assembly to drive the solution to circulate and mix. When the vertical pipe assembly forms a high-speed flow of the internal solution, a negative pressure suction force will be formed at the capillary tube, making it easier for suspended impurities in the wastewater to gather in the vertical pipe assembly and be positioned by the negative pressure adsorption and elastic disruptor, so as to facilitate subsequent separation from the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front structure of the present invention; Figure 2 This is a schematic diagram of the structure of the multi-effect treatment pool of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the multi-effect treatment tank of the present invention; Figure 4Schematic diagram of the internal structure of the multi-effect treatment pool of the present invention; Figure 5 This is a schematic diagram of the structure of the discharge pipe and the conduction pump assembly of the present invention; Figure 6 This is a schematic diagram of the installation distribution structure of the rotating connector and the aeration treatment net of the present invention; Figure 7 This is a schematic diagram of the aeration treatment network structure of the present invention; Figure 8 This is a schematic diagram of the installation distribution of the elastic disruptor of the present invention; Figure 9 Schematic diagram of the elastic disruptor structure of the present invention; Figure 10 This is a schematic diagram of the capillary distribution structure of the present invention; Figure 11 This is a schematic structural diagram of the waste discharge channel and pressure flushing assembly of the present invention.

[0019] In the figure: 1. Filtration tank; 101. Auger assembly; 2. Multi-effect treatment tank; 3. Sedimentation tank; 4. Discharge pipe; 5. Waste pipe; 6. Conducting pump assembly; 7. Rotating connector; 8. Aeration treatment net; 801. Vertical pipe assembly; 802. Capillary tube; 803. Elastic disruptor; 8031. Spring; 8032. Damping film; 8033. Permanent magnet; 8034. Float; 804. Valve; 805. Circulation pump assembly; 9. Waste channel; 10. Pressure flushing assembly. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1-4 The present invention provides a technical solution: a multi-stage treatment device for copper phthalocyanine wastewater, comprising a filter tank 1 for treating wastewater in sequence to filter out impurities, a multi-effect treatment tank 2 for stripping and flocculation treatment, and a sedimentation tank 3 for static sedimentation; at the same time, wastewater is transported between the filter tank 1 and the multi-effect treatment tank 2 through a pump pipe, wherein the filter tank 1 is also provided with an auger assembly 101 for cleaning floating waste, and the floating impurities in the filter tank 1 are filtered, and the floating waste is cleaned by using the auger assembly 101.

[0022] At the same time, the filter tank 1 can also be used to adjust the pH value of the wastewater. After filtering and adjusting the pH to a value between 3.5 and 5, the wastewater is introduced into the multi-effect treatment tank 2 for stripping to obtain stripping gas and stripping liquid. A large-scale hoisting sealing cover can be provided on the top of the multi-effect treatment tank 2 to guide the flow of the stripping gas, and to carry out deammonification and other treatments of the stripping gas in other external equipment such as an alkali absorption device. The stripping liquid still in the multi-effect treatment tank 2 is subjected to flocculation, displacement and other processes to flocculate chemical drugs such as precipitation agents to achieve the treatment of the stripping liquid, and is then allowed to settle and the pH value is adjusted again in the sedimentation tank 3 to carry out multi-stage treatment of the wastewater.

[0023] Secondly, in the present technical solution, the discharge pipe 4 and the waste pipe 5 are installed in the middle position of the bottom of the multi-effect treatment tank 2, and a conductive pump assembly 6 is fixed inside the multi-effect treatment tank 2 through a bracket. The conductive pump assembly 6 and the discharge pipe 4 form a communicating system for drainage. The upper end of the discharge pipe 4 is funnel-shaped, wherein the conductive pump assembly 6 and the upper end of the discharge pipe 4 are fixedly connected, and the two are arranged in an "n"-shaped structure inside the multi-effect treatment tank 2, acting on the drainage of the middle layer treated wastewater in the multi-effect treatment tank 2; after the wastewater is aerated, blown off, flocculated, and suspended matter is cleaned inside the multi-effect treatment tank 2, the conductive pump assembly 6 is started to drain the water through the discharge pipe 4, wherein the communicating system drainage formed by the conductive pump assembly 6 can reduce the frequency of use of the conductive pump assembly 6, improve the efficiency and stability of drainage of the discharge pipe 4, and at the same time will not affect the discharge of the waste pipe 5. The waste pipe 5 realizes the discharge and cleaning of flocculated and precipitated impurities through its upper pump structure.

[0024] In the present technical solution, the middle part of the rotating connector 7 is an inverted "T"-shaped structure, and the upper end of the inverted "T"-shaped rotating connector 7 is driven to rotate by the motor gear assembly, and is connected to each other for rotation and penetration by the gas pumping assembly; the rotating connector 7 is rotatably installed above the middle part of the multi-effect treatment tank 2 through a bracket, and the rotating connector 7 is connected to the aeration treatment net 8 in a through-type manner, and the aeration treatment net 8 is blown off and exhausted and flocculated and replaced by air pressure and hydraulic pressure respectively; the vertical pipe assembly 801 is connected to the interior of the rotating connector 7 through a connecting hose, wherein the interior of the rotating connector 7 is hollow, and the hollow interior of the rotating connector 7 is used for the transportation of gas and liquid; the movement of the rotating connector 7 and the aeration treatment net 8 thereon can be controlled by the rotation and internal conduction control of the rotating connector 7. When the aeration treatment net 8 moves, since a sliding power supply assembly is provided between the end of the rotating connector 7 and the circular frame inside the multi-effect treatment tank 2, it can provide starting power energy and activation signal for the valve 804; In the above scheme, when aeration and stripping treatment is required inside the multi-effect treatment tank 2, the rotating connector 7 is driven to rotate about its own vertical central axis under the action of the motor gear assembly. The rotating connector 7 moves with the aeration treatment net 8 to stir the wastewater solution in the multi-effect treatment tank 2. At the same time, the gas used for aeration and stripping is introduced into the rotating rotating connector 7 by the gas pumping assembly. During this process, the valve 804 is closed, and the gas can only be pressurized and ejected through the capillary 802, forming a mixed treatment of gas aeration and wastewater stripping. At the same time, since the rotating connector 7 and the aeration treatment net 8 are in a state of motion, the efficiency of aeration and stripping and the uniformity of gas distribution can be improved. At the same time, when the rotating connector 7 continues to move and the rotation speed changes repeatedly, the elastic disruptor 803 on the rotating connector 7 moves and changes its position. Under the action of the change in the movement speed of the rotating connector 7 and the damping force of the water body, the elastic disruptor 803 performs its own repeated expansion and contraction movement, achieving a secondary mixing treatment effect of gas aeration and wastewater stripping, thereby improving the efficiency of aeration and stripping.

[0025] Example 2: Based on Example 1, this example modifies the structure of the elastic disruptor 803 so that it can be used not only in the gas aeration stripping process but also in the flocculation and sedimentation sewage treatment of wastewater solutions. The operation method is as follows: The thin tubes 802 are evenly distributed at equal intervals, wherein the inner diameter of the thin tubes 802 is smaller than the inner diameter of the vertical pipe assembly 801, and the inclination of the central axis of the thin tube 802 is toward the liquid conveying direction inside the vertical pipe assembly 801; the elastic disruptor 803 includes two spirally distributed spring members 8031, and a damping film 8032 is fixed between the two adjacent spring members 8031. The damping film 8032 is arranged in a bowl-shaped structure, and a floating block 8034 is provided on the back of the damping film 8032. In addition, a circulation pump assembly 805 for circulating the liquid in the multi-effect treatment tank 2 and the vertical pipe assembly 801 is also provided on the rotating connector 7; in the above scheme, when the gas pumping assembly is closed, the rotating connector 7 is only driven to rotate by the motor gear assembly. At this time, the rotating connector 7 drives the aeration treatment net 8 to rotate, and at the same time, the valve 804 is closed, and the circulation pump assembly 805 is opened to release the flocculants. Coagulant, at this time, due to the movement of the rotating connector 7 and the aeration treatment net 8, the wastewater solution is mixed and flocculated. At the same time, due to the water channel composed of the circulating pump assembly 805, the rotating connector 7 and the vertical pipe assembly 801, the fast-flowing pressurized water flow is continuously discharged through the position of the valve 804 at the lower end of the vertical pipe assembly 801. The water flow can impact the wastewater solution for flocculation treatment. At the same time, in this process, due to the continuous high-pressure and high-flow rate water flow inside the vertical pipe assembly 801, a negative pressure suction force from the outside to the vertical pipe assembly 801 is formed at the capillary 802, so that the capillary 802 can collect the suspended impurities generated by the flocculation treatment in the wastewater solution to the position of the vertical pipe assembly 801. The spring member 8031 ​​that is clamped by the telescopic movement caused by the change in the movement speed of the rotating connector 7 can also be adsorbed to the port of the capillary 802 to separate the suspended flocculated impurities from the wastewater solution.

[0026] Furthermore, a waste discharge channel 9 and a pressure flushing assembly 10 are fixed to the multi-effect treatment tank 2. The pressure flushing assembly 10 is located directly above the waste discharge channel 9, with a gap reserved between the two. The gap is provided as a reserved space for the movement of the rotating connector 7. The pressure flushing assembly 10 uses hydraulic pressure to achieve flushing and drainage of the rotating connector 7 and the aeration treatment net 8 thereon. The outer frame composed of the aeration treatment net 8 and the middle part of the side wall of the rotating connector 7 are hinged and rotated. At the same time, the bowl-shaped damping film 8032 is divided into four equal sections in the middle section, and the sections are embedded with permanent magnets 8033 for magnetic attraction and positioning. After the suspended flocculated impurities are separated from the wastewater solution and are positioned at the ends of the spring member 8031 ​​and the capillary tube 802, as the connecting member 7 and the aeration net 8 thereon move, the aeration net 8 moves between the waste discharge channel 9 and the pressure flushing assembly 10. Under the action of the pressure flushing assembly 10, the flushing liquid is pressurized to exert pressure on the damping film 8032, causing the spring member 8031 ​​to expand and the impurities clamped therein to be flushed into the waste discharge channel 9 for discharge. At the same time, the equally divided arrangement of the damping film 8032 can well withstand the impact pressure of the water. When the flocculated impurities gather at the connection end of the damping film 8032 and the spring member 8031, the high water pressure will cause the damping film 8032 to deform and expand, thereby preventing the impurities from gathering and facilitating discharge. In order to improve the stability of the spring member 8031 ​​in clamping the flocculated impurities, fine wool or other adsorbent materials can be provided on the outside of the spring member 8031 ​​to facilitate the separation of the flocculated impurities from the wastewater solution.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-stage treatment device for copper phthalocyanine wastewater, comprising a filter tank (1) for sequentially treating wastewater to filter out impurities, a multi-effect treatment tank (2) for stripping and flocculation treatment, and a sedimentation tank (3) for static sedimentation; It is characterized by: Also includes: The discharge pipe (4) and the waste pipe (5) are installed at the middle position of the bottom of the multi-effect treatment tank (2). A conduction pump assembly (6) is fixed inside the multi-effect treatment tank (2) through a bracket. The conduction pump assembly (6) and the discharge pipe (4) form a communicating system for liquid discharge. The rotating connector (7) is rotatably mounted above the middle portion of the multi-effect treatment tank (2) via a bracket, and the rotating connector (7) is connected to an aeration treatment net (8) in a through-type manner. The aeration treatment net (8) realizes stripping and exhaust and flocculation replacement respectively through air pressure and hydraulic pressure.

2. A copper phthalocyanine wastewater multi-stage treatment device according to claim 1, characterized in that: Wastewater is transported between the filter tank (1) and the multi-effect treatment tank (2) via a pump pipe, wherein the filter tank (1) is also provided with an auger assembly (101) for cleaning floating waste.

3. A copper phthalocyanine wastewater multi-stage treatment device according to claim 1, characterized in that: The upper end of the discharge pipe (4) is funnel-shaped, wherein the conduction pump assembly (6) is fixedly connected to the upper end of the discharge pipe (4), and the two are arranged in an "n"-shaped structure inside the multi-effect treatment tank (2), acting on the discharge of the treated wastewater in the middle layer of the multi-effect treatment tank (2).

4. A copper phthalocyanine wastewater multi-stage treatment device according to claim 1, characterized in that: The aeration treatment net (8) comprises an outer frame for positioning, wherein vertical pipe assemblies (801) are fixed at equal intervals within the outer frame, and thin tubes (802) for exhaust are connected obliquely through the outer walls of the vertical pipe assemblies (801). A valve (804) is also fixed at the lower end of the vertical pipe assemblies (801), and elastic disruptors (803) are connected between adjacent vertical pipe assemblies (801). The elastic disruptors (803) are used for wastewater turbulence stripping and suspended impurity collection and treatment.

5. A copper phthalocyanine wastewater multi-stage treatment device according to claim 4, characterized in that: The vertical pipe assembly (801) is connected to the interior of the rotating connector (7) via a connecting hose, wherein the interior of the rotating connector (7) is hollow, and the hollow interior of the rotating connector (7) is used for transporting gas and liquid.

6. A copper phthalocyanine wastewater multi-stage treatment device according to claim 4, characterized in that: The capillaries (802) are evenly distributed at equal intervals, wherein the inner diameter of the capillaries (802) is smaller than the inner diameter of the vertical tube assembly (801), and the central axis of the capillaries (802) is tilted toward the liquid transport direction inside the vertical tube assembly (801).

7. A copper phthalocyanine wastewater multi-stage treatment device according to claim 6, characterized in that: The elastic disruptor (803) comprises two spirally distributed spring members (8031), a damping film (8032) being fixed between the two adjacent spring members (8031), the damping film (8032) being arranged in a bowl-shaped structure, and a floating block (8034) being provided on the back of the damping film (8032), and a circulating pump assembly (805) for circulating liquid in the multi-effect treatment tank (2) and the vertical pipe assembly (801) being provided through the rotating connecting member (7).

8. A copper phthalocyanine wastewater multi-stage treatment device according to claim 7, characterized in that: A waste discharge channel (9) and a pressure flushing assembly (10) are also fixed to the multi-effect treatment tank (2). The pressure flushing assembly (10) is located directly above the waste discharge channel (9), and a gap is reserved between the two. The gap is provided as a reserved space for the movement of the rotating connector (7). The pressure flushing assembly (10) utilizes hydraulic pressure to achieve flushing and drainage of the rotating connector (7) and the aeration treatment net (8) thereon.

9. A copper phthalocyanine wastewater multi-stage treatment device according to claim 8, characterized in that: The outer frame composed of the aeration treatment net (8) and the middle part of the side wall of the rotating connecting member (7) are hingedly connected and rotated; At the same time, the bowl-shaped damping film (8032) is divided into four equal sections in the middle section, and permanent magnets (8033) for magnetic adsorption and positioning are embedded in the sections.

10. A multi-stage treatment device for copper phthalocyanine wastewater according to any one of claims 4 to 9, characterized in that: The middle portion of the rotating connecting member (7) has an inverted "T"-shaped structure, and the inverted "T"-shaped upper end of the rotating connecting member (7) is driven to rotate by a motor gear assembly, and is connected to each other for rotation and penetration by a gas pumping assembly.

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