Fractional separation treatment device for sewage of thermal power plant

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a thermal power plant sewage grading separation treatment device which comprises a cone of sewage grading separation equipment, and a clamp device is mounted on the outer side of the cone. The clamp device comprises a U-shaped clamping piece, a clamp supporting plate, an external thread, an adjusting nut, a clamp connecting plate, a hinge piece, a clamp connecting block, a rotating shaft, a stop screw and a damping buffer block, the left end of the U-shaped clamping piece can freely penetrate through the clamp supporting plate, the external thread is arranged in the middle of the U-shaped clamping piece, and the external thread in the middle of the U-shaped clamping piece is screwed with the adjusting nut; the right end face of the clamp supporting plate is welded to the clamp connecting plate, hinge pieces are arranged on the upper side and the lower side of the rear end of the clamp connecting plate, hinge piece built-in holes are movably connected with rotating shafts at the upper end and the lower end of the clamp connecting block, the clamp connecting block is in threaded connection with the stop screw, and the bottom end of the cone is inserted and fixed to the inner side faces of the clamp supporting plate and the U-shaped clamping piece. According to the scheme, the cone of the sewage grading separation equipment can be stably mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage classification and separation treatment device for a thermal power plant. Background Art

[0002] The wastewater generated by thermal power plants contains a variety of solid impurities, mainly including coal ash, boiler slag, tiny particles in flue gas, etc. Generally, when treating wastewater, it is necessary to pass the wastewater into a sedimentation tank for slow natural sedimentation to separate solids and liquids. The sedimentation cycle is long, and a large sedimentation tank needs to be built to store wastewater, which occupies a large area and has high construction costs.

[0003] Another way is to use sewage classification and separation equipment (also called cyclone) to separate solid impurities in sewage. It was found during use that due to the high flow rate and cyclonic flow of the sewage classification and separation equipment, the solid impurities in the water flow impact the cone of the cyclone, causing vibration. The cone is not fixed, and the vibration of the cone will affect the classification and separation accuracy of the classification and separation equipment and increase the noise generation.

[0004] Since the side surface of the cone is an inclined arc surface, the existing pipeline fixing bracket does not fit the side surface of the cone, and installation and adjustment are inconvenient. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, a wastewater grading and separation treatment device for a thermal power plant is proposed, which can stably install the cone of the wastewater grading and separation equipment and is easy to install and adjust.

[0006] In order to solve the above problems, the utility model proposes a wastewater grading and separation treatment device for a thermal power plant, comprising a cone of a wastewater grading and separation device;

[0007] The outside of the cone is provided with a clamp device, which includes a U-shaped clamp, a clamp support plate, an external thread, an adjusting nut, a clamp connecting plate, a hinge, a clamp connecting block, a rotating shaft, a stop screw and a shock-absorbing buffer block. The left end of the U-shaped clamp can freely penetrate the clamp support plate, the middle part of the U-shaped clamp is provided with an external thread, the external thread in the middle of the U-shaped clamp is screwed with the adjusting nut, the right end face of the clamp support plate is welded with the clamp connecting plate, the upper and lower sides of the rear end of the clamp connecting plate are provided with hinges, and the hinges are connected with the clamp connecting block. The rotating shaft at the lower end is movably connected, the clamp connecting block is threadedly connected to the stop screw, a shock-absorbing buffer block is installed on the front end face of the clamp connecting block, the inner side surface of the U-shaped clamp fits with the outer side surface of the cone, and the bottom end of the cone is plugged and fixed to the clamp support plate and the inner side surface of the U-shaped clamp, a groove is provided on the top of the rotating shaft, a first nut is provided on the top of the rotating shaft, an extension column for inserting the top of the hinge is provided at the bottom of the first nut, a convex portion for cooperating with the groove is provided on the inner side of the first nut, and a second nut screwed with the rotating shaft is provided on the top of the first nut.

[0008] Furthermore, the right end surface of the shock-absorbing buffer block is an inclined arc surface, and the right end surface of the shock-absorbing buffer block is in contact with the middle surface of the cone.

[0009] Furthermore, the surface of the shock-absorbing buffer block is provided with anti-slip stripes.

[0010] Furthermore, a rectangular groove is installed in the middle of the clamp support plate, and the width and height of the rectangular groove are greater than the width and height of the inner groove of the clamp connecting plate.

[0011] Furthermore, the rotation angle range of the clamp connection block is 0°-120°.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Since the sewage grading and separation equipment generates vibrations during operation, the sewage grading and separation equipment can be effectively fixed by setting a clamp device. Specifically, a clamp device is set at the right end of the cone. When in use, the adjusting nut is rotated, and the adjusting nut will drive the clamp support plate on the right end face to move to the right and fit tightly to the left end face of the cone. Then, the clamp connection block is flipped to the left by hand. Since the rotating shafts at the upper and lower ends of the clamp connection block are movably connected to the hinge at the right end of the clamp connection plate, the clamp connection block drives the shock-absorbing buffer block to rotate after flipping. The shock-absorbing buffer block will fit tightly to the left end face of the cone and assist in clamping it. During use, the shock-absorbing buffer block and the U-shaped clamping piece on the inner side of the clamp support plate have a high degree of fit with the cone, and the surface of the shock-absorbing buffer block is provided with anti-slip stripes to increase the tightness of the clamp support plate and the cone to prevent it from falling off during long-term use. The stop screw limits the flipping angle of the clamp connection block to prevent excessive rotation from causing distortion and damage to the shock-absorbing buffer block. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic front view of the structure of the wastewater classification and separation treatment device in this thermal power plant.

[0015] Figure 2 This is a right view schematic diagram of the partial structure of the wastewater classification and separation treatment device in this thermal power plant.

[0016] Figure 3 This is a schematic diagram of the structure of the fixture device of the wastewater classification and separation treatment device in this thermal power plant.

[0017] Figure 4 This is a schematic diagram of the U-shaped clamping structure of the wastewater classification and separation treatment device in this thermal power plant.

[0018] Figure 5 This is a schematic diagram of the partial structure of the clamp device of the wastewater classification and separation treatment device in this thermal power plant.

[0019] Figure 6 This is the right view of the fixture connection block structure of the wastewater grading and separation treatment device in this thermal power plant.

[0020] Figure 7 This is the wastewater classification and separation treatment device of this thermal power plant Figure 5 A in the figure is an enlarged structural diagram.

[0021] Figure 8 This is a schematic diagram of the structure of the explosion state of the rotating shaft, the first nut and the second nut of the wastewater classification and separation treatment device of the thermal power plant.

[0022] In the figure:

[0023] 1. Sewage grading and separation equipment; 2. Sewage inlet channel; 3. Clean water overflow channel; 4. Cone; 5. Solid impurity precipitation port; 6. Sewage discharge pipe; 7. Clean water overflow extension pipe; 8. Clamp device; 81. U-shaped clamp; 82. Clamp support plate; 83. External thread; 84. Adjusting nut; 85. Clamp connecting plate; 86. Hinge; 87. Clamp connecting block; 88. Rotating shaft; 89. Stop screw; 810. Shock-absorbing buffer block; 811. Groove; 812. First nut; 813. Extension column; 814. Protrusion; 815. Second nut. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-Figure 8The utility model provides a wastewater grading and separation treatment device for a thermal power plant: comprising a wastewater grading and separation device 1, a wastewater inlet channel 2, a clean water overflow channel 3, a cone 4, a solid impurity precipitation port 5, a wastewater discharge pipe 6, a clean water overflow extension pipe 7 and a clamp device 8. The wastewater grading and separation device 1 adopts a cyclone (a cyclone is a common separation and grading device, which adopts the centrifugal sedimentation principle to achieve solid-liquid separation of wastewater).

[0026] The sewage classification and separation equipment 1 comprises a feed port, an overflow port and a discharge port. The above structure is an existing structure and will not be described in detail here.

[0027] The sewage inlet channel 2 is arranged at the top of the sewage classification and separation equipment 1 and connected to the feed port, the bottom of the clean water overflow channel 3 is connected to the overflow port of the sewage classification and separation equipment 1, the discharge port at the bottom of the sewage classification and separation equipment 1 is connected to the cone 4, the bottom of the cone 4 is a solid impurity precipitation port 5, the clean water overflow extension pipe 7 is connected to the clean water overflow channel 3, and the sewage inlet channel 2 is connected to the sewage discharge pipe 6. When in use, sewage is transported into the sewage classification and separation equipment 1 through the sewage discharge pipe 6.

[0028] A clamp device 8 is installed on the outside of the cone 4, and the clamp device 8 includes a U-shaped clamping member 81, a clamp support plate 82, an external thread 83, an adjusting nut 84, a clamp connecting plate 85, a hinge 86, a clamp connecting block 87, a rotating shaft 88, a stop screw 89 and a shock absorbing buffer block 810. The left end of the U-shaped clamping member 81 can freely penetrate the clamp support plate 82, and the middle part of the U-shaped clamping member 81 is provided with an external thread 83, and the external thread 83 in the middle of the U-shaped clamping member 81 is connected to the adjusting nut 84. The nuts 84 are screwed together, the right end surface of the clamp support plate 82 is welded to the clamp connecting plate 85, the upper and lower sides of the rear end of the clamp connecting plate 85 are provided with hinges 86, the built-in holes of the hinges 86 are movably connected with the rotating shafts 88 at the upper and lower ends of the clamp connecting block 87, the clamp connecting block 87 is threadedly connected with the stop screw 89, the front end surface of the clamp connecting block 87 is installed with a shock absorbing buffer block 810, the inner side surface of the U-shaped clamping piece 81 is in contact with the outer side surface of the cone 4, and the bottom end of the cone 4 is inserted into the The cam 814 is provided on the inner side of the cam 816 to engage with the cam 818 and the cam 819 is provided with a plurality of cams 820, 830 and 831. The cam 814 is provided on the inner side of the cam 816 to engage with the cam 818 and the cam 819 is provided with a plurality of cams 820, 830 and 831.

[0029] The diameter of the arc at the right end of the U-shaped clamping piece 81 is equal to the diameter of the circle where the section of the cone 4 at the installation position is located, which is conducive to the U-shaped clamping piece 81 fitting closely to the outer side surface of the cone 4.

[0030] Among them, the right end face of the shock-absorbing buffer block 810 is an inclined arc surface, and the right end face of the shock-absorbing buffer block 810 is provided with anti-slip stripes. The right end face of the shock-absorbing buffer block 810 fits with the middle surface of the cone 4, which is beneficial to increase the fit between the right end face of the shock-absorbing buffer block 810 and the outer surface of the cone 4.

[0031] A rectangular groove is installed in the middle of the clamp support plate 82 , and the width and height of the rectangular groove are greater than the width and height of the inner groove of the clamp connecting plate 85 , which is conducive to the shock-absorbing buffer block 810 passing through the rectangular groove in the clamp support plate 82 .

[0032] The rotation angle range of the clamp connection block 87 is 0°-120°, and the shape of the clamp connection block 87 is preferably trapezoidal to prevent the clamp connection block 87 from being excessively twisted to cause deformation of the shock-absorbing buffer block 810 and affect its service life.

[0033] The surface of the clamp connecting plate 85 is sprayed with 2 mm thick fluorocarbon paint, and the surface of the clamp connecting plate 85 is a smooth surface, which is beneficial to improving the corrosion resistance of the clamp connecting plate 85.

[0034] The material of the clamp connection block 87 is ABS plastic, which is low in cost and easy to shape; the material of the clamp connection plate 85 is 304 stainless steel, which is easy to process and corrosion-resistant.

[0035] During installation, first weld the U-shaped clamp 81 to the external support frame, then place the cone 4 at the middle of the bottom end of the sewage classification and separation equipment 1 on the inside of the U-shaped clamp 81 and the clamp support plate 82, and then rotate the adjusting nut 84 at the left end, the adjusting nut 84 will drive the clamp support plate 82 on the right end face to move to the right, and fit tightly to the left end face of the cone 4, and then manually flip the clamp connection block 87 to the left by 120°. Since the rotating shaft 88 at the upper and lower ends of the clamp connection block 87 is movably connected with the hinge 86 at the right end of the clamp connection plate 85, the clamp connection block 87 flips The shock-absorbing buffer block 810 is then driven to rotate, and the shock-absorbing buffer block 810 will fit tightly against the left end face of the cone 4 and assist in clamping it. During use, the shock-absorbing buffer block 810 and the U-shaped clamping piece 81 on the inner side of the clamp support plate 82 have a high fit with the cone 4, and the surface of the shock-absorbing buffer block 810 is provided with anti-slip stripes (not marked in the figure) to increase the tightness between the clamp support plate 82 and the cone 4 to prevent it from falling off during long-term use. The stop screw 89 limits the flipping angle of the clamp connecting block 87 to prevent excessive rotation from causing distortion and damage to the shock-absorbing buffer block 810.

[0036] When in use, the sewage discharge pipe 6 and the clean water overflow extension pipe 7 are connected to the external pipe. The thermal power plant sewage with a certain pressure enters the sewage inlet channel 2 through the sewage discharge pipe 6 through the external pipe, generating a strong rotational motion. Due to the density difference between the light phase and the heavy phase materials, the centrifugal force, centripetal buoyancy and fluid drag they are subjected to are different in magnitude, and most of the heavy phase materials are discharged through the solid impurity precipitation port 5 at the bottom of the cone 4 at the bottom of the sewage grading and separation equipment 1 under the effect of centrifugal sedimentation, and fall to the external collection rack for collection, while the light phase materials are discharged from the external pipe through the clean water overflow extension pipe 7.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wastewater classification and separation treatment device for a thermal power plant, comprising a cone (4) of a wastewater classification and separation device (1); Features: A clamp device (8) is installed on the outer side of the cone (4), and the clamp device (8) includes a U-shaped clamping member (81), a clamp support plate (82), an external thread (83), an adjusting nut (84), a clamp connecting plate (85), a hinge (86), a clamp connecting block (87), a rotating shaft (88), a stop screw (89) and a shock-absorbing buffer block (810). The left end of the U-shaped clamping member (81) can freely pass through the clamp support plate (82), the middle part of the U-shaped clamping member (81) is provided with an external thread (83), the external thread (83) in the middle part of the U-shaped clamping member (81) and the adjusting nut (84) are screwed together, the right end surface of the clamp support plate (82) is welded to the clamp connecting plate (85), and the upper and lower sides of the rear end of the clamp connecting plate (85) are provided with hinges (86), and the hinges (86) are connected to the upper and lower sides of the clamp connecting block (87). The clamp connecting block (87) is movably connected to the stop screw (89), the front end surface of the clamp connecting block (87) is threadedly connected to the stop screw (89), the inner side surface of the U-shaped clamping piece (81) is fitted with the outer side surface of the cone (4), and the bottom end of the cone (4) is plugged and fixed to the clamp support plate (82) and the inner side surface of the U-shaped clamping piece (81), the top of the rotating shaft (88) is provided with a groove (811), the top of the rotating shaft (88) is provided with a first nut (812), the bottom of the first nut (812) is provided with an extension column (813) for inserting into the top of the hinge (86), the inner side of the first nut (812) is provided with a convex portion (814) for matching with the groove (811), and the rotating shaft (88) is provided with a second nut (815) screwed with the rotating shaft (88) above the first nut (812).

2. A thermal power plant wastewater graded separation treatment device according to claim 1, characterized in that: The right end surface of the shock-absorbing buffer block (810) is an inclined arc surface, and the right end surface of the shock-absorbing buffer block (810) fits the middle surface of the cone (4).

3. A thermal power plant wastewater classification and separation treatment device according to claim 1, characterized in that: The surface of the shock-absorbing buffer block (810) is provided with anti-slip stripes.

4. A thermal power plant wastewater classification and separation treatment device according to claim 1, characterized in that: A rectangular groove is installed in the middle of the clamp support plate (82), and the width and height of the rectangular groove are greater than the width and height of the inner groove of the clamp connection plate (85).

5. The thermal power plant wastewater classification and separation treatment device according to claim 1 is characterized by: The rotation angle range of the clamp connection block (87) is 0°-120°.

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