Coking wastewater pretreatment device

Abstract

The utility model discloses a coking wastewater pretreatment device which comprises a base plate, and the left side of the top of the base plate is fixedly connected with a mounting frame. According to the coking wastewater and ion exchange resin mixing device, the motor, the transmission rod, the stirring blades, the stirring rod and the disc turbine stirrer are started to rotate, coking wastewater and ion exchange resin in the reaction tank are fully mixed, after the mixing operation is completed, the adjusting valve of the first discharging pipe is started, and the mixed coking wastewater and ion exchange resin enter the temporary storage box; the sediment is blocked in the fixed frame by the filter screen, and the coking wastewater settles in the temporary storage tank, so that the problem that ammonia nitrogen particles in the wastewater are settled and removed after the wastewater is generally put into a settling tank and stands for a period of time when the coking wastewater is treated at present, so that ammonia nitrogen in the wastewater is removed is solved; the treatment mode is time-consuming and labor-consuming, and floating oil and heavy oil in the wastewater need to be subjected to secondary treatment, so that the pretreatment efficiency of the coking wastewater is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coking wastewater, in particular to a coking wastewater pretreatment device. Background Art

[0002] Chemical wastewater is a typical type of toxic and difficult-to-degrade organic wastewater. It primarily comes from the water used in the primary cooling of coke oven gas and the coking process, as well as steam condensate wastewater. It refers to wastewater generated during coal coking, coal gas purification, chemical product recovery, and chemical product refining. Coking wastewater primarily comes from the water used in the primary cooling of coke oven gas and the coking process, as well as steam condensate wastewater. The wastewater contains high concentrations of pollutants and is difficult to degrade. The presence of nitrogen in coking wastewater creates an excess of nitrogen sources required for biological purification, making it difficult to meet treatment standards. The polycyclic aromatic hydrocarbons (PAHs) in coking wastewater are not only difficult to degrade but are often strong carcinogens, causing serious environmental pollution and a direct threat to human health. Therefore, coking wastewater must be purified and treated to meet standards before discharge.

[0003] At present, when treating coking wastewater, the wastewater is generally placed in a sedimentation tank and allowed to stand for a period of time to allow the ammonia nitrogen particles in the wastewater to settle and then be removed to complete the removal of ammonia nitrogen from the wastewater. This treatment method is not only time-consuming and labor-intensive, but also the floating oil and heavy oil in the wastewater require secondary treatment, resulting in a reduction in the efficiency of coking wastewater pretreatment.

[0004] Therefore, it is necessary to redesign and transform the pretreatment device to effectively prevent the current treatment of coking wastewater, which is generally done by placing the wastewater into a sedimentation tank and letting it stand for a period of time to allow the ammonia nitrogen particles in the wastewater to settle and then be removed. This treatment method is not only time-consuming and labor-intensive, but also requires secondary treatment of floating oil and heavy oil in the wastewater, resulting in a decrease in the efficiency of coking wastewater pretreatment. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a coking wastewater pretreatment device, which has the advantage of being easy to treat and solves the current problem of treating coking wastewater, which is generally done by placing the wastewater into a sedimentation tank and letting it stand for a period of time to allow the ammonia nitrogen particles in the wastewater to settle and then be removed, thereby completing the removal of ammonia nitrogen from the wastewater. This treatment method is not only time-consuming and labor-intensive, but also requires secondary treatment of the floating oil and heavy oil in the wastewater, resulting in reduced efficiency of coking wastewater pretreatment.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coking wastewater pretreatment device, comprising a base plate, a mounting bracket fixedly connected to the left side of the top of the base plate, a reaction tank fixedly installed inside the mounting bracket, a feed bin connected to the left side of the top of the reaction tank, a feed pipe connected to the right side of the top of the reaction tank, a mixing assembly provided inside the reaction tank, a temporary storage box fixedly connected to the top of the base plate, a filter assembly provided inside the temporary storage box, a water tank fixedly connected to the front side of the right side of the top of the base plate, and an outlet pipe connected between the left side of the water tank and the bottom of the right front side of the temporary storage box.

[0007] As a preferred embodiment of the present invention, the setting of the mixing component includes a motor, which is fixedly mounted on the top of the reaction tank through a flange, and the output end of the motor passes through the interior of the reaction tank and is fixedly connected to a transmission rod, and a stirring blade is fixedly mounted on the surface of the transmission rod, and the number of the stirring blades is several, and the surface of the stirring blade is fixedly connected to a stirring rod, and the number of the stirring rods is several, and a disc turbine agitator is fixedly mounted on the bottom of the surface of the transmission rod.

[0008] As a preferred embodiment of the present invention, the filter assembly includes a fixed frame, which is slidably connected to the top of the temporary storage box, and a filter is fixedly installed inside the fixed frame. The bottom of the reaction tank is connected to a first discharge pipe, and the right side of the discharge pipe is connected to the top of the temporary storage box. An observation plate is fixedly installed on the front side of the temporary storage box, and a storage box is fixedly connected to the rear side of the right side of the top of the base plate. The rear side of the right side top of the temporary storage box is connected to a second discharge pipe, and the right side of the second discharge pipe is located at the top of the storage box.

[0009] As a preferred embodiment of the present invention, a protective cover is threadedly connected to the top of the feed bin, and the protective cover is used in conjunction with the arrangement of the mixing assembly.

[0010] As a preferred embodiment of the present invention, the top of the feed pipe is threadedly connected to a sealing cover, and the sealing cover is used in conjunction with the arrangement of the mixing assembly.

[0011] As a preferred embodiment of the present invention, a slide groove is provided on the top of the left side and the right side of the inner wall of the temporary storage box, and the fixed frame is slidably connected to the inside of the slide groove through a slide rail.

[0012] As a preferred embodiment of the present invention, regulating valves are rotatably installed on the surfaces of the first discharge pipe, the second discharge pipe and the water outlet pipe, and there are several regulating valves.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model is provided with a mixing component and a filtering component. First, an appropriate amount of coking wastewater is added to the interior of the reaction tank through the feed pipe, and then a cation exchange resin is added to the interior of the reaction tank through the feed bin. The motor is started, and the output end of the motor drives the transmission rod to start rotating. When the transmission rod rotates, the stirring blade, the stirring rod, and the disc turbine stirrer start to rotate. When the stirring blade and the stirring rod rotate, the coking wastewater and the ion exchange resin in the reaction tank are fully mixed. When the disc turbine stirrer rotates, the sediment after the coking wastewater and the ion exchange resin in the reaction tank are prevented from clogging the bottom of the reaction tank. After the mixing operation is completed, the regulating valve of the first discharge pipe is started, and the mixed coking wastewater and the ion exchange resin enter the temporary storage box. In the first part, the precipitate after the coking wastewater and the ion exchange resin are mixed is blocked by the filter screen inside the fixed frame, and the filtered coking wastewater begins to settle inside the temporary storage box. After observing the floating oil and heavy oil in the wastewater settling and separating through the observation plate, the regulating valve of the second discharge pipe is started to discharge the floating oil and heavy oil into the storage box, and then the regulating valve of the water outlet pipe is opened to discharge the filtered coking wastewater into the water tank. This solves the current problem of treating coking wastewater by putting the wastewater into a sedimentation tank and letting it stand for a period of time to allow the ammonia nitrogen particles in the wastewater to settle and be removed, thereby completing the removal of ammonia nitrogen in the wastewater. This treatment method is not only time-consuming and labor-intensive, but also requires secondary treatment of the floating oil and heavy oil in the wastewater, resulting in reduced efficiency of coking wastewater pretreatment.

[0015] 2. The utility model can treat the coking wastewater inside the reaction tank more conveniently by using the mixing component, thereby avoiding the current treatment of coking wastewater, which is generally done by placing the wastewater into a sedimentation tank and letting it stand for a period of time to allow the ammonia nitrogen particles in the wastewater to settle and then be removed, thereby completing the removal of ammonia nitrogen in the wastewater, which leads to a decrease in the efficiency of coking wastewater pretreatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 This is a rear view schematic diagram of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the reaction tank of the present utility model;

[0019] Figure 4 This is a schematic diagram of the explosion of the hybrid component of the utility model;

[0020] Figure 5 This is an exploded diagram of the filter assembly of the utility model.

[0021] In the figure: 1. Base plate; 2. Mounting frame; 3. Reactor; 4. Feed hopper; 5. Feed pipe; 6. Mixing assembly; 61. Motor; 62. Drive rod; 63. Stirring blade; 64. Stirring rod; 65. Disc turbine agitator; 7. Temporary storage box; 8. Filter assembly; 81. Fixed frame; 82. Filter screen; 83. First discharge pipe; 84. Observation panel; 85. Storage box; 86. Second discharge pipe; 9. Water tank; 10. Water outlet pipe; 11. Protective cover; 12. Sealing cover; 13. Chute; 14. Regulating valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0023] like Figures 1 to 5 As shown, the utility model provides a coking wastewater pretreatment device, including a base plate 1, a mounting frame 2 is fixedly connected to the left side of the top of the base plate 1, a reaction tank 3 is fixedly installed inside the mounting frame 2, the left side of the top of the reaction tank 3 is connected to a feed bin 4, the right side of the top of the reaction tank 3 is connected to a feed pipe 5, a mixing component 6 is arranged inside the reaction tank 3, a temporary storage box 7 is fixedly connected to the top of the base plate 1, a filter component 8 is arranged inside the temporary storage box 7, a water tank 9 is fixedly connected to the front side of the right side of the top of the base plate 1, and a water outlet pipe 10 is connected to the left side of the water tank 9 and the bottom of the front side of the right side of the temporary storage box 7.

[0024] refer to Figure 4 The mixing component 6 is configured to include a motor 61, which is fixedly mounted on the top of the reaction tank 3 through a flange. The output end of the motor 61 passes through the interior of the reaction tank 3 and is fixedly connected to a transmission rod 62. A stirring blade 63 is fixedly mounted on the surface of the transmission rod 62. The number of stirring blades 63 is several. The surface of the stirring blade 63 is fixedly connected to a stirring rod 64. The number of stirring rods 64 is several. A disc turbine agitator 65 is fixedly mounted on the bottom of the surface of the transmission rod 62.

[0025] As a technical optimization solution of the present invention, the coking wastewater inside the reaction tank 3 can be treated by a more convenient ion exchange method through the setting of the mixing component 6, avoiding the current treatment of coking wastewater, which is generally done by placing the wastewater into a sedimentation tank and letting it stand for a period of time to allow the ammonia nitrogen particles in the wastewater to settle and then be removed, thereby completing the removal of ammonia nitrogen in the wastewater, resulting in a reduction in the efficiency of coking wastewater pretreatment.

[0026] refer to Figure 5The filter assembly 8 includes a fixed frame 81, which is slidably connected to the top of the temporary storage box 7. A filter screen 82 is fixedly installed inside the fixed frame 81. The bottom of the reaction tank 3 is connected to a first discharge pipe 83, and the right side of the discharge pipe is connected to the top of the temporary storage box 7. An observation plate 84 is fixedly installed on the front side of the temporary storage box 7. The rear side of the right side of the top of the substrate 1 is fixedly connected to a storage box 85. The rear side of the right side of the top of the temporary storage box 7 is connected to a second discharge pipe 86, and the right side of the second discharge pipe 86 is located at the top of the storage box 85.

[0027] As a technical optimization solution of the present invention, the setting of the filter component 8 can perform secondary treatment on the coking wastewater after preliminary treatment inside the reaction tank 3, thereby avoiding the situation in which the floating oil and heavy oil in the wastewater need to be treated secondary during actual use, resulting in a decrease in the efficiency of the coking wastewater pretreatment.

[0028] refer to Figure 1 The top of the feed bin 4 is threadedly connected with a protective cover 11, which is used in conjunction with the setting of the mixing assembly 6.

[0029] As a technical optimization solution of the present invention, the provision of the protective cover 11 can provide protection for the feed bin 4, thereby preventing dust contained in the external air from entering the interior of the reaction tank 3 through the feed bin 4 during actual use, thereby preventing the pretreatment efficiency from being reduced.

[0030] refer to Figure 2 The top of the feed pipe 5 is threadedly connected with a sealing cover 12, which is used in conjunction with the setting of the mixing component 6.

[0031] As a technical optimization solution of the present invention, the reaction tank 3 can be sealed by setting the sealing cover 12, so as to avoid the situation in which, after the coking wastewater is added to the inside of the reaction tank 3 during actual use, large particles of impurities contained in the outside air enter the interior of the reaction tank 3 through the feed pipe 5, resulting in a decrease in the pretreatment efficiency.

[0032] refer to Figure 5 A slide groove 13 is provided on the top of the left and right inner walls of the temporary storage box 7, and the fixed frame 81 is slidably connected to the inside of the slide groove 13 through a slide rail.

[0033] As a technical optimization solution of the present invention, the setting of the slide groove 13 can limit the fixed frame 81 to avoid the position of the fixed frame 81 being offset during the operation of the filter assembly 8, which may cause the operation of the filter assembly 8 to be interrupted.

[0034] refer to Figure 3 Regulating valves 14 are rotatably mounted on the surfaces of the first discharge pipe 83 , the second discharge pipe 86 , and the water outlet pipe 10 , and there are several regulating valves 14 .

[0035] As a technical optimization solution of the present invention, by setting the regulating valve 14, the first discharge pipe 83, the second discharge pipe 86, and the water outlet pipe 10 can be switched on and off more conveniently, thereby avoiding the situation in which the first discharge pipe 83, the second discharge pipe 86, and the water outlet pipe 10 are not switched on and off conveniently during actual use, resulting in a decrease in pretreatment efficiency.

[0036] The working principle and use process of the present invention are as follows: when in use, the user first adds an appropriate amount of coking wastewater into the interior of the reaction tank 3 through the feed pipe 5, and then adds cation exchange resin into the interior of the reaction tank 3 through the feed bin 4, and starts the motor 61. The output end of the motor 61 drives the transmission rod 62 to start rotating. When the transmission rod 62 rotates, it drives the stirring blade 63, the stirring rod 64, and the disc turbine stirrer 65 to start rotating. When the stirring blade 63 and the stirring rod 64 rotate, the coking wastewater and the ion exchange resin in the reaction tank 3 are fully mixed. When the disc turbine stirrer 65 rotates, it prevents the precipitate after the coking wastewater and the ion exchange resin in the reaction tank 3 from mixing with each other. The bottom of the tank 3 should be blocked. After the mixing operation is completed, the regulating valve 14 of the first discharge pipe 83 is started, and the mixed coking wastewater and ion exchange resin enter the interior of the temporary storage box 7. The precipitate after the coking wastewater and ion exchange resin are mixed is blocked by the filter 82 inside the fixed frame 81. The filtered coking wastewater begins to settle inside the temporary storage box 7. After observing the sedimentation and separation of the floating oil and heavy oil in the wastewater through the observation plate 84, the regulating valve 14 of the second discharge pipe 86 is started to discharge the floating oil and heavy oil into the interior of the storage box 85, and then the regulating valve 14 of the outlet pipe 10 is opened to discharge the filtered coking wastewater into the interior of the water tank 9, thereby achieving the effect of easy treatment.

[0037] To sum up: the coking wastewater pretreatment device, through the base plate 1, the mounting frame 2, the reaction tank 3, the feed bin 4, the feed pipe 5, the mixing component 6, the motor 61, the transmission rod 62, the stirring blade 63, the stirring rod 64, the disc turbine stirrer 65, the temporary storage box 7, the filter component 8, the fixed frame 81, the filter screen 82, the first discharge pipe 83, the observation plate 84, the storage box 85, the second discharge pipe 86, the water tank 9, the outlet pipe 10, the protective cover 11, the sealing cover 12, the chute 13, and the regulating valve 14, solves the current problem of treating coking wastewater, which is generally achieved by placing the wastewater into a sedimentation tank and allowing it to stand for a period of time to allow the ammonia nitrogen particles in the wastewater to settle and then be removed, thereby completing the removal of ammonia nitrogen in the wastewater. This treatment method is not only time-consuming and labor-intensive, but also requires secondary treatment of the floating oil and heavy oil in the wastewater, resulting in reduced efficiency of coking wastewater pretreatment.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coking wastewater pretreatment device, comprising a base plate (1), characterized in that: The left side of the top of the base plate (1) is fixedly connected to a mounting frame (2), a reaction tank (3) is fixedly installed inside the mounting frame (2), the left side of the top of the reaction tank (3) is connected to a feed bin (4), the right side of the top of the reaction tank (3) is connected to a feed pipe (5), a mixing assembly (6) is provided inside the reaction tank (3), the top of the base plate (1) is fixedly connected to a temporary storage box (7), a filtering assembly (8) is provided inside the temporary storage box (7), the front side of the right side of the top of the base plate (1) is fixedly connected to a water tank (9), and a water outlet pipe (10) is provided on the left side of the water tank (9) and the bottom of the right front side of the temporary storage box (7).

2. A coking wastewater pretreatment device according to claim 1, characterized in that: The mixing assembly (6) includes a motor (61), which is fixedly mounted on the top of the reaction tank (3) via a flange. The output end of the motor (61) extends into the interior of the reaction tank (3) and is fixedly connected to a transmission rod (62). A stirring blade (63) is fixedly mounted on the surface of the transmission rod (62). The number of the stirring blades (63) is several. A stirring rod (64) is fixedly connected to the surface of the stirring blade (63). The number of the stirring rod (64) is several. A disc turbine stirrer (65) is fixedly mounted on the bottom of the surface of the transmission rod (62).

3. A coking wastewater pretreatment device according to claim 1, characterized in that: The filter assembly (8) includes a fixed frame (81), the fixed frame (81) is slidably connected to the top of the temporary storage box (7), a filter screen (82) is fixedly installed inside the fixed frame (81), the bottom of the reaction tank (3) is connected to a first discharge pipe (83), the right side of the discharge pipe is connected to the top of the temporary storage box (7), an observation plate (84) is fixedly installed on the front side of the temporary storage box (7), the rear side of the right side of the top of the base plate (1) is fixedly connected to a storage box (85), the rear side of the right side of the top of the temporary storage box (7) is connected to a second discharge pipe (86), and the right side of the second discharge pipe (86) is located at the top of the storage box (85).

4. A coking wastewater pretreatment device according to claim 1, characterized in that: The top of the feed bin (4) is threadedly connected to a protective cover (11), and the protective cover (11) is used in conjunction with the arrangement of the mixing assembly (6).

5. A coking wastewater pretreatment device according to claim 1, characterized in that: The top of the feed pipe (5) is threadedly connected to a sealing cover (12), and the sealing cover (12) is used in conjunction with the arrangement of the mixing assembly (6).

6. A coking wastewater pretreatment device according to claim 3, characterized in that: The tops of the left and right sides of the inner wall of the temporary storage box (7) are both provided with sliding grooves (13), and the fixed frame (81) is slidably connected to the inside of the sliding grooves (13) via sliding rails.

7. A coking wastewater pretreatment device according to claim 3, characterized in that: Regulating valves (14) are rotatably mounted on the surfaces of the first discharge pipe (83), the second discharge pipe (86), and the water outlet pipe (10), and the number of the regulating valves (14) is several.

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