Coal slime-containing wastewater flocculating settling water purification device for pebble coal system

Abstract

The utility model relates to the technical field of flocculating settling water purification equipment, and discloses a coal slime-containing wastewater flocculating settling water purification device for a pebble coal system, which comprises a support underframe and an outer cylinder mounted at the upper end of the support underframe, the bottom of the outer cylinder is provided with a water inlet, the water inlet is externally connected with a water inlet pipe, and the outer wall of the water inlet pipe is provided with a water pump main body; a water outlet pipe is mounted on the outer wall of the outer cylinder, an inner cylinder is mounted in the outer cylinder, a stirring rod is rotatably connected to the inner wall of the inner cylinder, a stirring paddle is fixedly connected to the outer wall of the stirring rod, a sludge discharge area is formed between the lower end of the inner cylinder and the inner wall of the outer cylinder, and a sludge discharge channel is formed in the bottom of the sludge discharge area; a crushing assembly is installed on the inner wall of the sludge discharging channel and can automatically crush agglomerates, small agglomerates are directly crushed by crushing teeth, large agglomerates extrude the crushing teeth to enable a mounting rod to deform, a piston body compresses a spring, counter-acting force generated by the spring pushes the crushing teeth to continuously crush the agglomerates, and crushed flocs are discharged out of the device.

Description

TECHNICAL FIELD

[0001] The utility model relates to flocculation sedimentation water purification equipment technical field especially relates to a kind of coal slime-containing wastewater flocculation sedimentation water purification device for stone coal system. BACKGROUND

[0002] Currently, in the field of coal slime-containing wastewater treatment of stone coal system, the core technology of efficient flocculation sedimentation water purification device has been maturely applied. By integrating physical and chemical treatment methods, direct coagulation, centrifugal separation, gravity separation, dynamic filtration and sludge concentration technologies are integrated in the same reactor, which can quickly complete wastewater purification, significantly reduce the occupied area compared to traditional process, and replace the dispersed equipment such as reaction tank and mud scraper. At the same time, its automation control technology is stable and landed, and carries online monitoring, intelligent dosing and other modules, which can realize unattended whole process; the effluent quality (suspended solids, turbidity index) is significantly better than that of traditional coagulation sedimentation + filtration process or air flotation process, which can meet the relevant environmental protection and recycling water standards. However, part of the coal slime particles have strong adsorption and agglomeration characteristics, and in the gravity sedimentation and sludge concentration link inside the device, the coal slime is easy to compact and cake in the mud collection area at the bottom of the cavity, which can easily block the sludge discharge channel and affect the overall operation stability. SUMMARY

[0003] The technical problem to be solved by the utility model is that in the prior art, part of the coal slime particles have strong adsorption and agglomeration characteristics, and in the gravity sedimentation and sludge concentration link inside the device, the coal slime is easy to compact and cake in the mud collection area at the bottom of the cavity, which can easily block the sludge discharge channel and affect the overall operation stability. Therefore, the utility model provides a coal slime-containing wastewater flocculation sedimentation water purification device for stone coal system.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a coal slime-containing wastewater flocculation sedimentation water purification device for stone coal system, comprising a support chassis and an outer cylinder body installed on the upper end of the support chassis, a water inlet is formed in the bottom of the outer cylinder body, a water inlet pipe is connected to the water inlet, a water pump body is installed on the outer wall of the water inlet pipe, a water outlet pipe is installed on the outer wall of the outer cylinder body, an inner cylinder body is installed in the inner part of the outer cylinder body, a stirring assembly is arranged in the cavity of the inner cylinder body, a reinforced separation body is installed in the inner part of the outer cylinder body, a water purification area is formed between the upper end of the reinforced separation body and the inner wall of the outer cylinder body, a sludge discharge area is formed between the lower end of the inner cylinder body and the inner wall of the outer cylinder body, a sludge discharge channel is formed in the bottom of the sludge discharge area, a breaking assembly is installed on the inner wall of the sludge discharge channel, the breaking assembly comprises a movable cavity formed in the inner wall of the sludge discharge channel, a piston body is slidably connected to the inner wall of the movable cavity, one end of the piston body is fixedly connected to a mounting rod, a breaking tooth is rotatably connected to the end of the mounting rod away from the piston body, and the mounting rod is a component made of rubber material, which is elastic and deformable.

[0005] Further, the crushing assembly is provided with multiple groups, and the multiple groups of the crushing assembly are uniformly staggered and distributed on the inner wall of the sludge discharge channel.

[0006] Further, the stirring assembly comprises a stirring rod rotationally connected to the inner wall of the inner cylinder, an outer wall of the stirring rod is fixedly connected with a stirring paddle, an upper end of the stirring rod is fixedly connected with a stirring motor, and the stirring motor is installed on the upper wall of the outer cylinder.

[0007] Further, the outer supporting spring is fixedly connected to the end of the piston body away from the mounting rod, and the end of the outer supporting spring away from the piston body is fixedly connected with the inner bottom of the movable cavity.

[0008] Further, when the outer supporting spring is relaxed, the piston body is flush with the opening of the movable cavity.

[0009] The technical effects and advantages of the present application are as follows:

[0010] In the present application, the outer supporting spring provides elastic force for the crushing assembly, and can automatically crush the lumps, the small lumps are directly broken by the crushing teeth, the large lumps are crushed by the crushing teeth, the mounting rod is deformed, the piston body is compressed by the spring, the reaction force generated by the spring continuously crushes the lumps, and the crushed flocculation is discharged, thereby solving the problem that the coal slime particles have strong adsorption and agglomeration characteristics, the coal slime is gradually compacted and lumped in the inner bottom of the cavity, and the sludge discharge channel is easily blocked, thereby affecting the overall operation stability. BRIEF DESCRIPTION OF DRAWINGS

[0011] The disclosure of the present application will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings, the same reference numerals are used to refer to the same parts:

[0012] Figure 1 It is an overall three-dimensional structure schematic view of the present application;

[0013] Figure 2 It is an overall plane structure schematic view of the present application;

[0014] Figure 3 It is a structure schematic view of the outer cylinder in the present application;

[0015] Figure 4 It is an enlarged schematic view of A in the present application; Figure 3

[0016] Figure 5 It is a crushing assembly structure schematic view of the present application.

[0017] ​Legend: 1, support chassis; 2, outer cylinder; 3, water inlet pipe; 4, water pump main body; 5, water outlet pipe; 6, inner cylinder; 7, stirring rod; 8, stirring motor; 9, enhanced separation main body; 10, clean water area; 11, sludge discharge area; 12, sludge discharge channel; 13, crushing assembly; 131, movable cavity; 132, piston main body; 133, mounting rod; 134, crushing teeth; 135, outer supporting spring. DETAILED DESCRIPTION

[0018] It is easy to understand that according to the technical scheme of the present application, a person skilled in the art can propose a plurality of structure modes and implementation modes which can be replaced with each other without changing the essential spirit of the present application. Therefore, the following detailed description and the accompanying drawings are only exemplary description of the technical scheme of the present application, and should not be regarded as the whole or regarded as the limitation or restriction of the technical scheme of the present application.

[0019] Reference Figures 1-5 As shown in the figure, in order to solve the problem that part of the coal slime particles have strong adsorption and agglomeration characteristics, the coal slime in the sludge collection area at the bottom of the cavity is gradually compacted and caked in the gravity settling and sludge concentration link inside the device, thereby easily blocking the sludge discharge channel and affecting the overall operation stability, the following preferred technical scheme is provided:

[0020] A coal-containing wastewater flocculation and sedimentation water purification device for a stone coal system, comprising a support chassis 1, and an outer cylinder 2 installed on the upper end of the support chassis 1. The device is supported by the support chassis 1, and the outer cylinder 2 installed on the upper end thereof is the core processing cavity. The outer cylinder 2 is externally connected to a water inlet pipe 3 at the bottom thereof, and a flocculant feeding port is additionally provided on the water inlet pipe 3 for pre-feeding of flocculant. A water pump main body 4 is provided on the outer wall of the water inlet pipe 3 to provide power for wastewater transportation. An inner cylinder 6 is installed inside the outer cylinder 2 for flocculation reaction and preliminary stirring and coagulation. A stirring assembly is provided in the cavity of the inner cylinder 6, which comprises a stirring rod 7 rotatably connected to the inner wall of the inner cylinder 6, and stirring paddles fixed to the outer wall thereof. The stirring assembly is driven to rotate by a stirring motor 8 installed on the upper end of the outer cylinder 2. The outer cylinder 2 further comprises an enhanced separation main body 9, which forms a clean water area 10 with the inner wall of the outer cylinder 2 at the upper end thereof for collecting clear water, and the clear water is discharged through a water outlet pipe 5 provided on the outer wall of the outer cylinder 2. The lower end of the inner cylinder 6 forms a sludge discharge area 11 with the inner wall of the outer cylinder 2 for collecting concentrated coal slime flocs. A sludge discharge channel 12 is provided at the bottom of the sludge discharge area 11 for discharging coal slime, and a plurality of crushing assemblies 13 are installed on the inner wall of the sludge discharge channel 12 for crushing compacted and caked coal slime flocs. Each component is connected to each other, and an integrated treatment process of water inlet, flocculation, coagulation, separation, water purification and sludge discharge is constructed around the flocculation and sedimentation core principle.

[0021] The core treatment logic of the slime-containing wastewater is based on the flocculation sedimentation principle: the slime particles are in a dispersed suspended state in water, have small particle size and surface with the same charge, and are difficult to naturally settle due to mutual repulsion. By adding flocculants to the water inlet pipe 3, the flocculant molecules will be adsorbed on the surface of the slime particles, neutralize the particle charge, break the repulsive force, and at the same time connect multiple small slime particles to form slime flocs through bridging action. The flocs can quickly settle and separate in the subsequent link due to the gravity being greater than the buoyancy.

[0022] The support chassis 1 supports the outer cylinder 2 to remain stable. The water inlet pipe 3 extends to the inside of the inner cylinder 6 through the water inlet at the bottom of the outer cylinder 2, thereby directly conveying the slime-containing wastewater into the inner cylinder 6. At the same time, the flocculants are added through the flocculant adding port on the water inlet pipe 3, and the wastewater and flocculants are mixed in the pipe and then enter the inner cylinder 6. The water pump body 4 provides stable water pressure for the entire conveying process, ensuring that the mixed solution of wastewater and flocculants can flow uniformly and continuously into the inner cylinder 6, avoiding local concentration unevenness affecting flocculation effect. At the same time, the stirring motor 8 is powered on and rotates, driving the stirring rod 7 on the inner wall of the inner cylinder 6 to rotate, and the stirring paddle on the outer wall of the stirring rod 7 stirs the mixed solution to aid coagulation, avoiding breaking the formed flocs by high-speed stirring, and promoting the contact between the flocculants and the slime particles to ensure uniform and stable floc formation. Through the action of flocculants and the aid of coagulation, the slime particles form dense flocs, the settling velocity is greatly improved, and the long-term suspension of fine slime is avoided.

[0023] The reinforced separation body 9 inside the outer cylinder 2 receives the mixed solution after flocculation and coagulation aid in the inner cylinder 6. The clarified clean water flows upward to the clean water area 10 at the upper end of the reinforced separation body 9, and is finally discharged through the water outlet pipe 5 on the outer wall of the outer cylinder 2. Opening the bottom passage of the inner cylinder 6, the sludge flocs fall into the sludge discharge area 11 at the lower end of the inner cylinder 6 for concentration. The flocs accumulate in the sludge discharge area 11, and the water is drained through the gaps between the flocs.

[0024] Some slime flocs may still accumulate at the bottom of the sludge discharge area 11 due to adsorption characteristics, and form loose clumps under the pressure of gravity. If not treated, they may still block the sludge discharge channel 12. Therefore, the breaking assembly 13 needs to be designed with an adaptive breaking structure according to the characteristics of the floc clumps. The breaking assembly 13 is provided in multiple groups, and the multiple groups of breaking assemblies 13 are evenly staggered on the inner wall of the sludge discharge channel 12. The even distribution ensures that the slime flocs at any cross section of the sludge discharge channel 12 can contact the breaking assembly 13, and there is no dead angle for breaking. The staggered layout makes the breaking range of adjacent breaking assemblies 13 overlap each other, avoiding the passage of floc clumps from the gap.

[0025] The movable cavity 131 of the crushing assembly 13 is arranged on the inner wall of the sludge discharge channel 12, the one end of the piston body 132 slidably connected to the inner wall of the movable cavity 131 is fixedly installed with a rod 133, the end of the rod 133 away from the piston body 132 is rotatably connected with a crushing tooth 134, the other end of the piston body 132 is fixedly installed with an outer supporting spring 135 fixed to the inner bottom of the movable cavity 131, and when the outer supporting spring 135 is relaxed, the piston body 132 is flush with the opening of the movable cavity 131, the rod 133 is made of rubber material and is elastically deformable, when the concentrated coal sludge flocculation passes through the sludge discharge channel 12, the agglomerated flocculation extrudes the crushing tooth 134, if the agglomerated flocculation is small, the crushing tooth 134 directly crushes it into loose flocculation, if the agglomerated flocculation is large, the crushing tooth 134 is extruded to drive the rod 133 made of rubber material to deform, and at the same time, the piston body 132 is pushed to slide inward along the movable cavity 131, the outer supporting spring 135 is compressed, and a temporary passing space is provided for the large agglomerated flocculation, and the reaction force of the outer supporting spring 135 makes the crushing tooth 134 continuously adhere to the agglomerated flocculation, the large agglomerated flocculation is gradually crushed into flowable flocculation by the rotating crushing tooth 134, and the crushed coal sludge flocculation is smoothly discharged, and the outer supporting spring 135 rebounds to drive the piston body 132, the rod 133 and the crushing tooth 134 to reset.

[0026] The combination of the outer supporting spring 135 and the rubber rod 133 realizes self-adaptive crushing, which can crush small flocculation agglomerates and compensate for large agglomerates through deformation and elastic force, avoiding the rigidity of the crushing component from being stuck due to the large agglomerate, and the rotating crushing tooth 134 increases the contact area with the flocculation, and the crushing efficiency is high.

[0027] When the outer supporting spring 135 is relaxed, the piston body 132 is flush with the opening of the movable cavity 131, and the crushing tooth 134 naturally protrudes from the inner wall of the sludge discharge channel 12. In this state, the coal sludge flocculation can first contact the crushing tooth 134 when passing through the sludge discharge channel 12, without waiting for the agglomerate to be extruded and pushed, and the crushing is intervened in advance, and the coal sludge flocculation can be prevented from being pushed into the movable cavity 131.

[0028] Specifically, during operation, the water pump body 4 is started, and the coal slurry-containing wastewater is transported to the inner cylinder 6 inside the outer cylinder 2, and the flocculating agent is added through the water inlet pipe 3 at the same time during the transportation process. The flocculating agent forms a floc by neutralizing the charge and bridging effect of the coal slurry particles, and at the same time, the stirring motor 8 on the upper wall of the outer cylinder 2 drives the stirring rod 7 on the inner wall of the inner cylinder 6 to stir slowly and gently to help coagulation. The stirring rod 7 is provided with a stirring paddle, which can ensure that the floc is uniform and stable. The pretreated mixed liquid flows upward through the inner cylinder 6 to the enhanced separation body 9, and the enhanced separation body 9 is a inclined pipe or a honeycomb structure. The floc adheres and settles on the surface of the enhanced separation body 9 relying on the shallow layer settling principle. The bottom passage of the inner cylinder 6 is opened, and the sludge floc falls into the sludge discharge area 11 at the lower end of the inner cylinder 6 for concentration. Subsequently, under the action of gravity, the sludge floc falls into the sludge discharge passage 12 at the bottom of the sludge discharge area 11. A plurality of evenly staggered breaking components 13 are installed on the inner wall of the sludge discharge passage 12. The movable cavity 131 of the breaking component 13 is provided with a piston body 132. The piston body 132 is connected with an installation rod 133 made of rubber material. The installation rod 133 is connected with a breaking tooth 134. An outer supporting spring 135 provides elastic force for the breaking component 13, which can automatically break the agglomerates. Small agglomerates are directly broken by the breaking tooth 134. Large agglomerates are squeezed by the breaking tooth 134 to deform the installation rod 133 and compress the spring of the piston body 132. The reaction force generated by the spring continuously breaks the agglomerates by the breaking tooth 134. The broken floc is discharged from the device, solving the problem that part of the coal slurry particles have strong adsorption and agglomeration characteristics. In the gravity settling and sludge concentration link inside the device, the coal slurry in the cavity bottom of the sludge collection area is gradually compacted and agglomerated, which easily blocks the sludge discharge passage and affects the overall operation stability. The spring drives the piston body 132, the installation rod 133 and the breaking tooth 134 to reset.

[0029] The technical scope of the utility model is not limited to the content in the above description. Those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical thought of the utility model, and these modifications and changes should be within the protection scope of the utility model.

Claims

1. A flocculation and sedimentation water purification device for a stone coal system, characterized in that, The utility model provides a water purifier, including support chassis and the outer cylinder that installs support chassis upper end, the bottom of outer cylinder is equipped with water inlet, the periphery of water inlet is equipped with water inlet pipe, the outer wall of water inlet pipe is installed with water pump main body, the outer wall of outer cylinder is installed with water outlet pipe, the inside of outer cylinder is installed with inner cylinder, the cavity of inner cylinder is provided with stirring subassembly, the inside of outer cylinder is installed with reinforced separation main part, the upper end between reinforced separation main part and outer cylinder inner wall is net water area, the lower end between inner cylinder and outer cylinder inner wall is mud area, the bottom of mud area is equipped with mud channel, the inner wall of mud channel is installed with broken assembly, broken assembly includes the movable cavity of the inner wall of mud channel, the inner wall of movable cavity is connected with piston main body, one end of piston main body is fixedly connected with mounting rod, the end away from piston main body of mounting rod is rotatably connected with broken tooth, the mounting rod is the component of rubber material, has elasticity and can be deformed.

2. The slime-laden wastewater flocculation and sedimentation water purification device for the stone dust system according to claim 1, characterized in that: The broken assembly is provided with multiple groups, and the multiple groups of broken assemblies are uniformly and staggeredly distributed on the inner wall of the mud channel.

3. The slime-laden wastewater flocculation and sedimentation water purification device for the stone dust system according to claim 1, characterized in that: The stirring assembly includes a stirring rod rotatably connected to the inner wall of the inner cylinder, an outer wall of the stirring rod is fixedly connected with a stirring paddle, an upper end of the stirring rod is fixedly connected with a stirring motor, and the stirring motor is installed on the upper wall of the outer cylinder.

4. The slime-laden wastewater flocculation and sedimentation water purification device for a stone dust system according to claim 1, characterized in that: The end of the piston main body away from the mounting rod is fixedly connected with an outer support spring, and the end of the outer support spring away from the piston main body is fixedly connected with the inner bottom of the movable cavity.

5. The flocculating sedimentation water purification device for the stone dust system with coal slime waste water according to claim 4, characterized in that: When the outer support spring is relaxed, the piston main body is flush with the opening of the movable cavity.

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