Sewage treatment equipment and sewage treatment system for esterification reaction

Abstract

The present invention relates to the technical field of multi-stage sewage treatment, and discloses a sewage treatment device and a sewage treatment system for esterification reaction, including a main body, wherein a regulating tank, a flocculation tank and a sedimentation tank are arranged inside the main body, and a partition is fixedly connected inside the regulating tank, and the partition divides the regulating tank into a plurality of chambers. The present invention is conducive to realizing a decentralized step-by-step neutralization operation by dividing the regulating tank into a plurality of chambers in series, and providing a barrel and an agitator matching the chambers. Compared with the method of centralized agent neutralization, the probability of the occurrence of agent agglomerates is smaller, and by providing a screen drum, an inclined blade, a drive assembly and a transmission assembly, it is possible to collect agglomerates that are difficult to disperse, and then grind them above the sewage liquid surface and then re-put them into the sewage for dispersion, further solving the problem that a small amount of agglomerates are difficult to disperse, thereby improving the neutralization effect, reducing the amount of sludge in the sewage, and reducing the sludge treatment pressure of the subsequent sedimentation tank.

Description

Technical Field

[0001] The invention relates to the technical field of multi-stage sewage treatment, in particular to sewage treatment equipment and a sewage treatment system for esterification reaction. Background Art

[0002] The wastewater formed by the esterification reaction has the characteristics of high organic matter concentration, complex composition, biological toxicity, poor biodegradability, high salt content and acidic pH value. Therefore, the esterification wastewater needs to undergo a strict treatment process before discharge. At present, the sewage treatment process for this type of wastewater mainly includes screen removal of large particle impurities, neutralization of sewage pH, flocculation and sedimentation, micro-electrolysis treatment, anaerobic aerobic biological treatment and deep filtration. Among them, the early treatment work can be carried out by integrated sewage treatment equipment. The current integrated sewage treatment equipment mainly neutralizes and flocculates sewage. However, there are still certain deficiencies in the treatment of this type of esterification wastewater: Since lipid sewage is acidic, it is generally necessary to inject lime milk into the sewage for adjustment, but the existing equipment generally injects lime milk into the regulating tank and then cooperates with the agitator to achieve dispersion. However, when there is more lime milk, it is difficult to disperse and it is easy to agglomerate. After agglomeration, it is not only unable to neutralize the sewage well, but also leads to an increase in sludge in the sewage, which increases the pressure of cleaning during subsequent flocculation and sedimentation. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a sewage treatment equipment and a sewage treatment system for esterification reaction, which have the advantages of improving the sewage neutralization effect, not easy to agglomerate and thus reducing the sludge treatment pressure, and solves the problem that the existing sewage treatment equipment is prone to agglomeration when neutralizing esterification wastewater.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a sewage treatment equipment, comprising a main body, wherein a regulating tank, a flocculation tank and a sedimentation tank are arranged inside the main body, a partition is fixedly connected inside the regulating tank, the partition divides the regulating tank into a plurality of chambers, a plurality of through holes are arranged on the partition for connecting the chambers in series, and a stirrer, a screen drum, an inclined blade, a driving assembly and a transmission assembly are installed in each of the chambers;

[0005] A plurality of barrels respectively matched with the chambers are fixed on the top of the main body, and the barrels are used to store medicines and discharge the medicines into the screen cylinder;

[0006] The stirrer comprises a rotatable stirring shaft, and the stirrer is used to disperse the medicine;

[0007] The sieve cylinder is sleeved on the stirring shaft, and the sieve cylinder is used to receive the medicine and sieve the agglomerates;

[0008] The inclined blades are arranged inside the screen drum and vertically slidably mounted on the stirring shaft, and the inclined blades are used to pre-disperse the medicine and grind the agglomerates;

[0009] The driving assembly is arranged above the screen drum, and is used to drive the screen drum and the inclined blades to move vertically to different distances respectively;

[0010] The transmission assembly is in transmission connection with the agitator and the inclined blade, and the transmission assembly and the agitator cooperate with each other to drive the inclined blade to swing intermittently;

[0011] When sewage treatment is carried out, the bottom of the screen drum is immersed in sewage, each material barrel operates and injects chemicals into the screen drum, and each agitator operates, forcing the inclined blades to rotate synchronously to disperse the chemicals into each chamber. The sewage flows through each chamber in turn and is gradually neutralized. When the chemicals are unevenly dispersed and lumps appear, the lumps only exist in the screen drum. The driving assembly operates, forcing the screen drum and the inclined blades to move up to the liquid surface, and the inclined blades fit the bottom wall of the screen drum. At this time, the agitator operates to drive the inclined blades to rotate. When the inclined blades rotate, the transmission assembly operates, forcing the inclined blades to swing back and forth, thereby grinding the lumps.

[0012] Preferably, a support plate is provided above the chamber, and both ends of the support plate are fixedly connected to the inner wall of the chamber. The agitator includes a motor fixed on the support plate, and the output shaft of the motor faces downward and is fixed to the top of the agitator shaft. A stirring blade and a limit ring are fixedly connected to the agitator shaft, and the limit ring is located above the stirring blade. A sliding sleeve is vertically slidably connected to the agitator shaft, and the sliding sleeve is located above the limit ring. One end of the inclined blade is mounted on the sliding sleeve, and an inner ring is provided on the outer side of the sliding sleeve. A plurality of connecting blocks distributed in a ring array are fixed between the inner ring and the sliding sleeve, and gaps are provided between adjacent connecting blocks.

[0013] Preferably, the driving assembly includes an outer ring, a cylinder and a base rod, the outer ring is sleeved on the outside of the inner ring and is rotatably connected to the inner ring through a bearing, the cylinder is fixed on the support plate with the output end facing downward, the base rod is fixed on the top of the screen drum, one end of the base rod is fixed to the output end of the cylinder, the other end of the base rod is provided with a guide rod, the guide rod is movably plugged into the base rod, the bottom end of the guide rod is fixedly connected to the outer ring, the guide rod outer sleeve is provided with a reset spring, and the two ends of the reset spring are respectively fixedly connected to the base rod and the outer ring.

[0014] Preferably, the driving assembly further comprises an upper positioning ring arranged directly above the guide rod, the upper positioning ring is sleeved on the outside of the stirring shaft, and an upper support rod is fixedly connected between the upper positioning ring and the support plate.

[0015] Preferably, the bottom edge of the inclined blade is rotatably connected to the outer wall of the sliding sleeve through a rotating shaft, a strip groove is provided on the edge of the inclined blade near one end of the sliding sleeve, the outer wall of the sliding sleeve is provided with a first vertical slide groove, the transmission assembly includes a strip slider slidably connected to the inside of the first vertical slide groove, a first spring is fixedly connected between the bottom end of the strip slider and the inner wall of the bottom end of the first vertical slide groove, a driving pin is fixed on the surface of the strip slider, the driving pin is inserted in the strip groove, the top end of the strip slider extends to above the connecting block through the gap between adjacent connecting blocks, and the top end of the strip slider is fixedly connected to an arc surface end.

[0016] Preferably, the transmission assembly also includes a lower positioning ring located directly above the arc surface end head, the lower positioning ring is sleeved on the outside of the stirring shaft, a lower support rod is fixedly connected between the lower positioning ring and the upper positioning ring, a plurality of protrusions distributed in a circular array are arranged at the bottom of the lower positioning ring, and slope surfaces are arranged at both ends of the protrusions, and the slope surfaces extend from the bottom surface of the lower positioning ring to the bottom surface of the protrusions.

[0017] Preferably, a limiting hole is provided on the side wall of the strip-shaped slider, a limiting rack matching the limiting hole is provided on the outer wall of the sliding sleeve, the limiting rack is slidably connected to the outer wall of the sliding sleeve, and an adjusting component for adjusting the position of the limiting rack is also installed on the sliding sleeve.

[0018] Preferably, a second vertical slide groove is provided on the sliding sleeve, and the adjusting assembly includes a transverse axis and a driven rack, the driven rack is slidably connected to the second vertical slide groove, a second spring is fixedly connected to the top of the driven rack, a base block is fixedly connected to the top of the second spring, the base block is fixedly connected to the inner wall of the second vertical slide groove, the transverse axis is installed on the outer wall of the sliding sleeve through a bearing seat, a transmission gear is fixed on the transverse axis, and the transmission gear is meshed with the driven rack and the limit rack at the same time.

[0019] Preferably, a discharge pipe is fixedly connected to the bottom of the barrel, and the end of the discharge pipe corresponds to the position of the screen barrel.

[0020] The invention also discloses a sewage treatment system for esterification reaction, and the sewage treatment system for esterification reaction uses the above-mentioned sewage treatment equipment.

[0021] Compared with the prior art, the present invention provides a sewage treatment device and a sewage treatment system for esterification reaction, which have the following beneficial effects:

[0022] 1. This type of sewage treatment equipment and sewage treatment system for esterification reaction, by dividing the regulating tank into multiple chambers in series and providing barrels and agitators matching the chambers, is conducive to realizing decentralized step-by-step neutralization operation. Compared with the method of centralized agent neutralization, the probability of agent agglomerates is lower, and by providing a screen drum, inclined blades, a drive assembly and a transmission assembly, it is possible to collect agglomerates that are difficult to disperse, and then grind them above the sewage liquid surface and then re-put them into the sewage for dispersion, further solving the problem that a small amount of agglomerates are difficult to disperse, thereby improving the neutralization effect, reducing the amount of sludge in the sewage, and reducing the sludge treatment pressure of the subsequent sedimentation tank.

[0023] 2. This type of sewage treatment equipment and sewage treatment system for esterification reaction can achieve a dual dispersion effect of pre-dispersion and secondary dispersion by setting inclined blades and agitators, thereby improving the mixing efficiency of the agent and sewage and further improving the neutralization effect.

[0024] 3. This type of sewage treatment equipment and sewage treatment system for esterification reaction, by setting the limit hole, the limit rack and the adjustment component, is conducive to keeping the inclined blade in a stable engaged state when in the sewage, avoiding the inclined blade from moving randomly and affecting the dispersion effect. By setting the second spring, when the inclined blade moves up and separates from the sewage, the elastic force of the spring drives the driven rack to move, and then drives the limit rack to separate from the limit hole, thereby releasing the limit on the strip slider and the inclined blade, which is conducive to flexible adjustment of the state of the inclined blade according to different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A longitudinal cross-sectional effect diagram of a sewage treatment device of the present invention;

[0026] Figure 2 It is a transverse cross-sectional effect diagram of a sewage treatment equipment of the present invention;

[0027] Figure 3 is a cross-sectional view of the screen drum of the present invention;

[0028] Figure 4 It is an exploded view of the installation structure of the oblique blade of the present invention;

[0029] Figure 5 For the present invention Figure 4 A magnified view of part A;

[0030] Figure 6 It is a structural schematic diagram of the driving assembly of the present invention;

[0031] Figure 7 For the present invention Figure 6 A magnified view of part B;

[0032] Figure 8It is a schematic diagram of the installation structure of the strip slider of the present invention;

[0033] Fig. 9 For the present invention Figure 8 Enlarged view of part C.

[0034] In the figure: 1, main body; 2, regulating tank; 21, partition; 22, chamber; 23, through hole; 24, support plate; 3, flocculation tank; 4, sedimentation tank; 5, agitator; 51, agitator shaft; 52, motor; 53, agitator blade; 54, limit ring; 55, sliding sleeve; 56, inner ring; 57, connecting block; 58, first vertical slide; 59, second vertical slide; 6, screen drum; 7, inclined blade; 71, strip groove; 8, drive assembly; 81, outer ring; 82, cylinder; 83, base rod; 84, guide Rod; 85, return spring; 86, upper positioning ring; 87, upper support rod; 9, transmission assembly; 91, strip slider; 92, first spring; 93, drive pin; 94, arc end; 95, lower positioning ring; 96, lower support rod; 97, bump; 98, limit hole; 10, barrel; 101, discharge pipe; 11, limit rack; 12, adjustment assembly; 121, horizontal axis; 122, driven rack; 123, second spring; 124, base block; 125, bearing seat; 126, transmission gear. DETAILED DESCRIPTION

[0035] 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 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 creative work are within the scope of protection of the present invention.

[0036] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a sewage treatment equipment and a sewage treatment system for esterification reaction.

[0037] Example 1: Please refer to Figure 1 - Figure 3 A sewage treatment device comprises a main body 1, wherein a regulating tank 2, a flocculation tank 3 and a sedimentation tank 4 are arranged inside the main body 1, wherein a partition 21 is fixedly connected inside the regulating tank 2, wherein the partition 21 divides the regulating tank 2 into a plurality of chambers 22, wherein a plurality of through holes 23 are arranged on the partition 21 for connecting the chambers 22 in series, wherein a stirrer 5, a screen drum 6, an inclined blade 7, a driving assembly 8 and a transmission assembly 9 are installed in each of the chambers 22;

[0038] A plurality of barrels 10 respectively matched with the chambers 22 are fixed on the top of the main body 1, and the barrels 10 are used to store medicines and discharge the medicines into the screen cylinder 6;

[0039] The stirrer 5 includes a rotatable stirring shaft 51, and the stirrer 5 is used to disperse the medicine;

[0040] The sieve drum 6 is sleeved on the stirring shaft 51, and the sieve drum 6 is used to receive the medicine and sieve the agglomerates;

[0041] The inclined blade 7 is arranged inside the screen drum 6 and vertically slidably mounted on the stirring shaft 51. The inclined blade 7 is used to pre-disperse the medicine and grind the agglomerates.

[0042] The driving assembly 8 is arranged above the screen drum 6, and the driving assembly 8 is used to drive the screen drum 6 and the inclined blade 7 to move vertically to different distances respectively;

[0043] The transmission assembly 9 is in transmission connection with the agitator 5 and the inclined blade 7, and the transmission assembly 9 and the agitator 5 cooperate with each other to drive the inclined blade 7 to swing intermittently;

[0044] When sewage treatment is carried out, the bottom of the screen drum 6 is immersed in sewage, each barrel 10 operates and injects medicine into the screen drum 6, each agitator 5 operates, forcing the inclined blade 7 to rotate synchronously, and the medicine is dispersed into each chamber 22, and the sewage flows through each chamber 22 in turn, and then gradually neutralized; when the medicine is unevenly dispersed and lumps appear, the lumps only exist in the screen drum 6, the driving component 8 operates, forcing the screen drum 6 and the inclined blade 7 to move up to the liquid surface, and the inclined blade 7 is attached to the inner bottom wall of the screen drum 6, at this time, the agitator 5 operates to drive the inclined blade 7 to rotate, and when the inclined blade 7 rotates, the transmission component 9 operates, forcing the inclined blade 7 to swing back and forth, thereby grinding the lumps;

[0045] In the sewage treatment, the esterified sewage passes through the regulating tank 2, the flocculation tank 3 and the sedimentation tank 4 in sequence, the partition 21 is set in a grid shape, and the regulating tank 2 can be divided into a plurality of chambers 22 arranged in a matrix shape, and the esterified sewage passes through each chamber 22 in sequence through the through hole 23, and is neutralized each time it passes through a chamber 22, and its agent is preferably lime milk, the screen drum 6 is set in a circular shape, and the side wall and the bottom wall are provided with screen holes. In actual application, the liquid level of the esterified sewage is lower than the top edge of the screen drum 6, the number of inclined blades 7 is preferably set to three, and the number of transmission components 9 matches the number of inclined blades 7;

[0046] When in use, the sewage flows through each chamber 22 in turn, and a small amount of neutralizing agent is added into each chamber 22 by multiple barrels 10, so that the sewage is gradually neutralized. In the specific neutralization operation, the agent added by the barrel 10 just falls into the screen drum 6. At this time, the agitator 5 is running, driving the inclined blade 7 located in the screen drum 6 to rotate, and the inclined blade 7 pre-disperses the agent. The dispersed agent with a smaller particle size passes through the screen drum 6 and is mixed into the sewage. When the agitator 5 is running, the sewage containing the agent is further mixed and dispersed. If there are lumps in the agent that are difficult to disperse, they will be retained in the screen drum 6, and then the drive assembly 8 is started. When the drive assembly 8 is running, it drives the screen drum 6 and the inclined blade 7 to move upward, so that The screen drum 6 and the inclined blade 7 are separated from the sewage liquid surface, and the bottom edge of the inclined blade 7 is also made to fit the inner bottom wall of the screen drum 6. At this time, the agitator 5 is started again. When the agitator 5 is running, the agitator shaft 51 rotates, and the inclined blade 7 is driven to rotate again. The inclined blade 7 collects the agglomerates on the inner bottom wall of the screen drum 6, so that the agglomerates are accumulated at the bottom of the inclined blade 7. At the same time, the transmission component 9 operates while the blade rotates, so that the inclined blade 7 swings back and forth. The reciprocating inclined blade 7 continuously squeezes the agglomerates at the bottom, which plays a role of grinding and crushing. Finally, the driving component 8 is started again, so that the screen drum 6 and the inclined blade 7 move down into the sewage again. At this time, the ground agglomerates can be dispersed into the sewage again.

[0047] By dividing the regulating tank 2 into a plurality of chambers 22 connected in series, and providing a barrel 10 and an agitator 5 matching the chamber 22, it is advantageous to realize a decentralized step-by-step neutralization operation. Compared with the method of centralized agent neutralization, the probability of agent agglomerates is lower. In addition, by providing a screen drum 6, an inclined blade 7, a drive assembly 8 and a transmission assembly 9, agglomerates that are difficult to disperse can be collected, and then ground above the sewage surface and then re-introduced into the sewage for dispersion, which further solves the problem of a small amount of agglomerates being difficult to disperse, thereby improving the neutralization effect, reducing the amount of sludge in the sewage, and reducing the sludge treatment pressure of the subsequent sedimentation tank.

[0048] Example 2: See Figure 2 - Figure 4, which is different from the above embodiment, a support plate 24 is provided above the chamber 22, and both ends of the support plate 24 are fixedly connected to the inner wall of the chamber 22, the agitator 5 includes a motor 52 fixed on the support plate 24, the output shaft of the motor 52 faces downward and is fixed to the top of the agitator shaft 51, a stirring blade 53 and a limit ring 54 are fixedly connected to the agitator shaft 51, the limit ring 54 is located above the agitator blade 53, a sliding sleeve 55 is vertically slidably connected to the agitator shaft 51, and the sliding sleeve 55 is located above the limit ring 54, one end of the inclined blade 7 is mounted on the sliding sleeve 55, an inner ring 56 is sleeved on the outer side of the sliding sleeve 55, a plurality of connecting blocks 57 distributed in an annular array are fixed between the inner ring 56 and the sliding sleeve 55, and gaps are provided between adjacent connecting blocks 57, a discharge pipe 101 is fixedly connected to the bottom of the barrel 10, and the end of the discharge pipe 101 corresponds to the position of the screen barrel 6;

[0049] Among them, the support plate 24 is arranged horizontally, the type of the stirring blade 53 is determined according to actual needs, and in actual applications, a vertical slide groove is arranged on the outer wall of the stirring shaft 51, and the sliding sleeve 55 is slidably connected with the vertical slide groove. The inclined blade 7 is arranged in three, and the three inclined blades 7 are distributed in a ring array. The diameter of the inclined blade 7 matches the inner diameter of the screen drum 6. In actual applications, a valve is arranged on the discharge pipe 101 to realize on-off control;

[0050] When in use, the motor 52 is started, and the motor 52 drives the stirring shaft 51 to rotate when it is running. When the stirring shaft 51 rotates, it drives the stirring blades 53 and the sliding sleeve 55 to rotate. When the sliding sleeve 55 rotates, it drives the multiple inclined blades 7 to rotate. The medicine in the barrel 10 is discharged into the screen barrel 6 through the discharge pipe 101. The rotating inclined blades 7 pre-disperse the medicine, and the stirring blades 53 further disperse the medicine.

[0051] By providing the agitator 5 and the inclined blades 7 installed on the agitator shaft 51, the medicine put into the chamber 22 can be efficiently dispersed so that the medicine and the sewage are fully mixed.

[0052] Example 3, see Figure 2 - Figure 4, different from the above embodiment, the driving assembly 8 includes an outer ring 81, a cylinder 82 and a base rod 83, the outer ring 81 is sleeved on the outside of the inner ring 56 and is rotatably connected to the inner ring 56 through a bearing, the cylinder 82 is fixed on the support plate 24 with the output end facing downward, the base rod 83 is fixed on the top of the screen drum 6, one end of the base rod 83 is fixed to the output end of the cylinder 82, and the other end of the base rod 83 is provided with a guide rod 84, the guide rod 84 is movably plugged with the base rod 83, the bottom end of the guide rod 84 is fixedly connected to the outer ring 81, the outer sleeve of the guide rod 84 is provided with a return spring 85, and the two ends of the return spring 85 are respectively fixedly connected to the base rod 83 and the outer ring 81, and the driving assembly 8 also includes an upper positioning ring 86 arranged directly above the guide rod 84, the upper positioning ring 86 is sleeved on the outside of the stirring shaft 51, and an upper support rod 87 is fixedly connected between the upper positioning ring 86 and the support plate 24;

[0053] The cylinder 82, the base rod 83, the guide rod 84 and the return spring 85 are preferably arranged in two groups and symmetrically arranged on the outer ring 81. The cylinder 82 can be replaced by other components with the same function.

[0054] When in use, the cylinder 82 is started, and the cylinder 82 contracts to drive the screen drum 6 and the base rod 83 on the screen drum 6 to move upward. When the base rod 83 moves upward, the outer ring 81 is also driven upward through the spring. When the outer ring 81 moves upward, the inner ring 56 and the sliding sleeve 55 are driven upward through the bearing, and then the inclined paddle 7 installed on the sliding sleeve 55 is driven upward. When the screen drum 6 and the inclined paddle 7 are completely moved up to above the liquid surface, the top of the guide rod 84 contacts the upper positioning ring 86 and cannot move, so that the outer ring 81, the inner ring 56, the sliding sleeve 55 and the inclined paddle 7 are suspended at the current position, and the base rod 83 and the screen drum 6 continue to move upward, which will stretch the reset spring 85 until the bottom edge of the inclined paddle 7 contacts the inner bottom wall of the screen drum 6 and the screen drum 6 stops moving. At this time, the agglomerates retained in the screen drum 6 fall on the inner bottom wall surface of the screen drum 6.

[0055] By setting up the driving assembly 8, the cylinder 82 can be contracted to drive the screen drum 6 and the inclined blade 7 to move up to the outside of the liquid surface. At the same time, the bottom of the inclined blade 7 is made to fit the inner bottom wall of the screen drum 6, which is beneficial for collecting the difficult-to-disperse lumps in the screen drum 6 and facilitates the subsequent further grinding of such lumps.

[0056] Example 4, see Figure 4 - Fig. 9, which is different from the above-mentioned embodiment, the bottom edge of the inclined blade 7 is rotatably connected to the outer wall of the sliding sleeve 55 through a rotating shaft, the edge of the inclined blade 7 close to one end of the sliding sleeve 55 is provided with a strip groove 71, the outer wall of the sliding sleeve 55 is provided with a first vertical slide groove 58, the transmission assembly 9 includes a strip slider 91 slidably connected to the inside of the first vertical slide groove 58, a first spring 92 is fixedly connected between the bottom end of the strip slider 91 and the inner wall of the bottom end of the first vertical slide groove 58, a driving pin 93 is fixed to the surface of the strip slider 91, the driving pin 93 is inserted in the strip groove 71, and the strip The top of the slider 91 extends to the top of the connecting block 57 through the gap between the adjacent connecting blocks 57. The top of the strip-shaped slider 91 is fixedly connected to a curved end head 94. The transmission assembly 9 also includes a lower positioning ring 95 located just above the curved end head 94. The lower positioning ring 95 is sleeved on the outside of the stirring shaft 51. A lower support rod 96 is fixedly connected between the lower positioning ring 95 and the upper positioning ring 86. A plurality of protrusions 97 distributed in an annular array are provided at the bottom of the lower positioning ring 95. Both ends of the protrusion 97 are provided with slopes, which extend from the bottom surface of the lower positioning ring 95 to the bottom surface of the protrusion 97.

[0057] The top of the arc surface end 94 is set as an arc surface. In actual application, when the driving assembly 8 is running, the inclined blade 7 and the screen drum 6 are driven to move upward. When the bottom edge of the inclined blade 7 is in contact with the inner bottom wall of the screen drum 6, the arc-shaped end of the top of the strip slider 91 just moves up to the bottom of the lower positioning ring 95 along with the sliding sleeve 55.

[0058] When in use, when the bottom edge of the inclined blade 7 is in contact with the inner bottom wall of the sieve drum 6, the agitator 5 is started again, which drives the sliding sleeve 55 and the inclined blade 7 to rotate. When the inclined blade 7 rotates, the agglomerates are collected, so that the agglomerates are accumulated in the area between the inclined blade 7 and the inner bottom wall of the sieve drum 6. At the same time, the strip slider 91 on the sliding sleeve 55 also rotates with the sliding sleeve 55. During the rotation of the strip slider 91, the arc-shaped end of the top moves along the bottom of the lower positioning ring 95, and when passing through the protrusion 97, it is squeezed by the slope of the protrusion 97, so that the strip slider 91 is in the first vertical slot 58. When the strip slider 91 moves downward, the first spring 92 is compressed and the driving pin 93 is driven downward. When the driving pin 93 moves downward, it pushes the inner wall of the strip groove 71, so that the inclined blade 7 swings downward. When the arc-shaped end is separated from the protrusion 97 along the slope of the protrusion 97, the elastic force of the first spring 92 causes the strip slider 91 to move upward again, thereby driving the driving pin 93 to move upward and reset, thereby driving the inclined blade 7 to swing upward, and so on and so forth, so that the inclined blade 7 continues to swing back and forth. When the inclined blade 7 swings, it squeezes the mass collected at the bottom, crushes the mass after squeezing, and plays a grinding role.

[0059] By setting up the transmission component 9 and cooperating with the operation of the agitator 5, the inclined blades 7 in the screen drum 6 can be driven to rotate and swing back and forth, which is beneficial for scraping off the lumps on the bottom wall of the screen drum 6 and squeezing and crushing the lumps, thereby efficiently grinding the lumps so that the lumps can be redispersed later, thereby improving the neutralization effect of the sewage and reducing the lumps, thereby reducing the solid sludge content in the sewage.

[0060] Example 5, see Figure 5 - Fig. 9 , which is different from the above-mentioned embodiment, the side wall of the strip-shaped slider 91 is provided with a limiting hole 98, the outer wall of the sliding sleeve 55 is provided with a limiting rack 11 matching the limiting hole 98, the limiting rack 11 is slidably connected with the outer wall of the sliding sleeve 55, and the sliding sleeve 55 is also equipped with an adjusting component 12 for adjusting the position of the limiting rack 11, the sliding sleeve 55 is provided with a second vertical sliding groove 59, the adjusting component 12 includes a horizontal shaft 121 and a driven rack 122, the driven rack The driven rack 122 is slidably connected to the second vertical slide groove 59, the top of the driven rack 122 is fixedly connected to the second spring 123, the top of the second spring 123 is fixedly connected to the base block 124, the base block 124 is fixedly connected to the inner wall of the second vertical slide groove 59, the horizontal shaft 121 is installed on the outer wall of the sliding sleeve 55 through the bearing seat 125, and a transmission gear 126 is fixed on the horizontal shaft 121, and the transmission gear 126 is meshed with the driven rack 122 and the limit rack 11 at the same time;

[0061] Among them, two bearing seats 125 are arranged on the horizontal shaft 121, the driven rack 122 is arranged vertically, the limiting rack 11 is arranged horizontally, and the driven rack 122 is arranged just above the limiting ring 54;

[0062] When in use, after the agglomerates in the screen drum 6 are ground, the driving assembly 8 is started, so that the screen drum 6, the sliding sleeve 55 and the inclined blade 7 are moved down and reset. When the sliding sleeve 55 moves down, the driven rack 122 installed on the sliding sleeve 55 first contacts the limiting ring 54 and then cannot move down, so that the driven rack 122 and the sliding sleeve 55 that continues to move down move relative to each other. At this time, the driven rack 122 drives the transmission gear 126 to rotate. When the transmission gear 126 rotates, the limiting rack 11 is driven to move toward the inside of the sliding sleeve 55, and then inserted into the limiting hole 98 on the strip slider 91, so as to limit the strip slider 91. Therefore, when the sliding sleeve 55 and the inclined blade 7 are reset, the strip slider 91 is in a stable engaged state. At the same time, the strip slider 91 is also engaged with the inclined blade 7 through the driving pin 93, thereby ensuring the stability of the angle of the inclined blade 7.

[0063] By setting the limiting hole 98, the limiting rack 11 and the adjusting component 12, it is beneficial to keep the inclined paddle 7 in a stable engaged state when in the sewage, and avoid the inclined paddle 7 from moving randomly and affecting the dispersion effect. By setting the second spring 123, when the inclined paddle 7 moves up and separates from the sewage, the elastic force of the spring drives the driven rack 122 to move, and then drives the limiting rack 11 to separate from the limiting hole 98, so as to release the limitation of the strip slider 91 and the inclined paddle 7, which is beneficial to flexibly adjust the state of the inclined paddle 7 according to different working states.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment equipment, comprising a main body, wherein a regulating tank, a flocculation tank and a sedimentation tank are arranged inside the main body, characterized in that: A partition is fixedly connected in the regulating tank, and the partition divides the regulating tank into multiple chambers. The partition is provided with multiple through holes for connecting the chambers in series, and the chambers are all equipped with agitators, screen drums, inclined blades, drive components and transmission components; A plurality of barrels respectively matched with the chambers are fixed on the top of the main body, and the barrels are used to store medicines and discharge the medicines into the screen cylinder; The stirrer comprises a rotatable stirring shaft, and the stirrer is used to disperse the medicine; The sieve cylinder is sleeved on the stirring shaft, and the sieve cylinder is used to receive the medicine and sieve the agglomerates; The inclined blades are arranged inside the screen drum and vertically slidably mounted on the stirring shaft, and the inclined blades are used to pre-disperse the medicine and grind the agglomerates; The driving assembly is arranged above the screen drum, and is used to drive the screen drum and the inclined blades to move vertically to different distances respectively; The transmission assembly is in transmission connection with the agitator and the inclined blade, and the transmission assembly and the agitator cooperate with each other to drive the inclined blade to swing intermittently; When sewage treatment is carried out, the bottom of the screen drum is immersed in sewage, each barrel operates and injects chemicals into the screen drum, each agitator operates, forcing the inclined blades to rotate synchronously, dispersing the chemicals into each chamber, and the sewage flows through each chamber in turn, and is gradually neutralized; When the medicine is unevenly dispersed and lumps appear, the lumps only exist in the screen drum. The driving assembly operates, forcing the screen drum and the inclined paddle to move up to the liquid surface, and the inclined paddle fits the bottom wall of the screen drum. At this time, the agitator drives the inclined paddle to rotate. When the inclined paddle rotates, the transmission assembly operates at the same time, forcing the inclined paddle to swing back and forth, thereby grinding the lumps.

2. A sewage treatment equipment according to claim 1, characterized in that: A support plate is provided above the chamber, and both ends of the support plate are fixedly connected to the inner wall of the chamber. The agitator includes a motor fixed on the support plate, and the output shaft of the motor faces downward and is fixed to the top of the agitator shaft. A stirring blade and a limit ring are fixedly connected to the agitator shaft, and the limit ring is located above the stirring blade. A sliding sleeve is vertically slidably connected to the agitator shaft, and the sliding sleeve is located above the limit ring. One end of the inclined blade is mounted on the sliding sleeve, and an inner ring is provided on the outer side of the sliding sleeve. A plurality of connecting blocks distributed in a ring array are fixed between the inner ring and the sliding sleeve, and gaps are provided between adjacent connecting blocks.

3. A sewage treatment equipment according to claim 2, characterized in that: The driving assembly includes an outer ring, a cylinder and a base rod. The outer ring is sleeved on the outside of the inner ring and is rotatably connected to the inner ring through a bearing. The cylinder is fixed on a support plate with an output end facing downward. The base rod is fixed on the top of the screen drum. One end of the base rod is fixed to the output end of the cylinder. A guide rod is provided at the other end of the base rod. The guide rod is movably plugged into the base rod. The bottom end of the guide rod is fixedly connected to the outer ring. A return spring is provided on the outer sleeve of the guide rod. The two ends of the return spring are respectively fixedly connected to the base rod and the outer ring.

4. A sewage treatment equipment according to claim 3, characterized in that: The driving assembly also includes an upper positioning ring arranged just above the guide rod, the upper positioning ring is sleeved on the outside of the stirring shaft, and an upper support rod is fixedly connected between the upper positioning ring and the support plate.

5. A sewage treatment equipment according to claim 4, characterized in that: The bottom edge of the inclined blade is rotatably connected to the outer wall of the sliding sleeve through a rotating shaft, and a strip groove is opened on the edge of the inclined blade near one end of the sliding sleeve, and a first vertical slide groove is arranged on the outer wall of the sliding sleeve. The transmission assembly includes a strip slider slidably connected to the inside of the first vertical slide groove, a first spring is fixedly connected between the bottom end of the strip slider and the inner wall of the bottom end of the first vertical slide groove, a driving pin is fixed on the surface of the strip slider, and the driving pin is inserted in the strip groove, and the top end of the strip slider extends to above the connecting block through the gap between adjacent connecting blocks, and the top end of the strip slider is fixedly connected to an arc surface end.

6. A sewage treatment equipment according to claim 5, characterized in that: The transmission assembly also includes a lower positioning ring located directly above the arc surface end, the lower positioning ring is sleeved on the outside of the stirring shaft, a lower support rod is fixedly connected between the lower positioning ring and the upper positioning ring, a plurality of protrusions distributed in a circular array are arranged at the bottom of the lower positioning ring, and slope surfaces are arranged at both ends of the protrusions, and the slope surfaces extend from the bottom surface of the lower positioning ring to the bottom surface of the protrusions.

7. A sewage treatment equipment according to claim 6, characterized in that: The side wall of the strip-shaped slider is provided with a limiting hole, the outer wall of the sliding sleeve is provided with a limiting rack matching the limiting hole, the limiting rack is slidably connected to the outer wall of the sliding sleeve, and an adjusting component for adjusting the position of the limiting rack is also installed on the sliding sleeve.

8. A sewage treatment equipment according to claim 7, characterized in that: The sliding sleeve is provided with a second vertical sliding groove, and the adjusting assembly includes a transverse shaft and a driven rack, the driven rack is slidably connected to the second vertical sliding groove, a second spring is fixedly connected to the top of the driven rack, a base block is fixedly connected to the top of the second spring, the base block is fixedly connected to the inner wall of the second vertical sliding groove, the transverse shaft is installed on the outer wall of the sliding sleeve through a bearing seat, a transmission gear is fixed on the transverse shaft, and the transmission gear is meshed with the driven rack and the limit rack at the same time.

9. A sewage treatment equipment according to claim 1, characterized in that: A discharge pipe is fixedly connected to the bottom of the barrel, and the end of the discharge pipe corresponds to the position of the screen barrel.

10. A wastewater treatment system for esterification reaction, characterized in that: The sewage treatment system for esterification reaction uses a sewage treatment equipment as described in any one of claims 1-9.

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