Integrated gravity type high-speed sludge concentration complete device and control method

Abstract

The application discloses an integrated gravity type high-speed sludge concentration complete device and a control method. The integrated gravity type high-speed sludge concentration complete device comprises a tank body, a sludge concentration assembly, a measuring assembly, an adjusting assembly and a control assembly. The tank body has a sludge concentration cavity, a sludge inlet pipeline and a sludge outlet pipeline which are all communicated with the sludge concentration cavity. The sludge concentration assembly is arranged in the sludge concentration cavity and is used for concentrating sludge. The measuring assembly is arranged on the tank body and comprises a sludge inlet flow measuring element, a sludge outlet flow measuring element, a sludge level measuring element and a liquid level measuring element. The adjusting assembly comprises a sludge inlet adjusting valve communicated with the sludge inlet pipeline and a sludge outlet adjusting valve communicated with the sludge outlet pipeline. The control assembly is communicatively connected with the measuring assembly and the adjusting assembly. The sludge concentration complete device can reduce the water content of sludge, improve the sludge concentration effect and save energy. The application is applied to the field of sludge treatment equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sludge treatment equipment, in particular to an integrated gravity type high-speed sludge concentration complete device and a control method. BACKGROUND

[0002] In recent years, with the rapid development of economy and the introduction of energy-saving and emission-reducing policies, the urban sewage treatment industry has developed rapidly, and the water environment management has achieved remarkable results. Biological method is the most commonly used method for sewage treatment, and residual sludge is an inevitable product in the process. The residual sludge is prone to rot, has a foul odor, and contains a large amount of harmful substances such as pathogenic microorganisms, parasitic eggs or heavy metals. If it cannot be effectively treated and disposed, it is easy to cause secondary pollution to groundwater, soil and other environmental safety and public health, and affect the positive effect of the implementation of the national energy-saving and emission-reducing strategy.

[0003] In the related art, the sludge of the national urban sewage treatment plant is directly introduced into the sludge storage tank for subsequent filter pressing treatment after secondary sludge sedimentation. The sludge has a high water content, and the sludge treatment capacity is large, resulting in energy waste. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides an integrated gravity type high-speed sludge concentration complete device, which can reduce the water content of the sludge, improve the sludge concentration effect, and save energy.

[0005] The present application also provides a control method.

[0006] According to the integrated gravity type high-speed sludge concentration complete device of the first aspect of the present application, the device comprises:

[0007] The tank body has a sludge concentration cavity, an inlet sludge pipeline and an outlet sludge pipeline which are all connected to the sludge concentration cavity;

[0008] The sludge concentration assembly is arranged in the sludge concentration cavity and is used for concentrating sludge;

[0009] The measuring assembly is arranged in the tank body, and the measuring assembly comprises an inlet sludge flow measuring piece for detecting the inlet sludge flow in the inlet sludge pipeline, an outlet sludge flow measuring piece for detecting the outlet sludge flow in the outlet sludge pipeline, a sludge level measuring piece for detecting the sludge position in the sludge concentration cavity, and a liquid level measuring piece for detecting the liquid level in the sludge concentration cavity;

[0010] The adjusting assembly comprises an inlet sludge adjusting valve connected to the inlet sludge pipeline and an outlet sludge adjusting valve connected to the outlet sludge pipeline, the inlet sludge adjusting valve is used for controlling the opening and closing and opening range of the inlet sludge pipeline, and the outlet sludge adjusting valve is used for controlling the opening and closing and opening range of the outlet sludge pipeline;

[0011] a control component, communicatively connected to the measuring component and the adjusting component;

[0012] The control component is configured to: acquire the sludge level value of the sludge level measuring component and the liquid level value of the liquid level measuring component, acquire the sludge inflow of the sludge inflow measuring component and the sludge outflow of the sludge outflow measuring component, compare the sludge level value and the liquid level value with the first preset value after processing, compare the sludge inflow and the sludge outflow with the second preset value after processing, and adjust the adjusting component according to the comparison results.

[0013] The integrated gravity type high-speed sludge concentration complete device according to the first aspect of the present application has at least the following beneficial effects: the control component processes the data measured by the measuring component, compares the processed data with the first preset value and the second preset value, judges the sludge concentration condition in the sludge concentration cavity in the tank, and controls the adjusting component to adjust according to the corresponding sludge concentration condition, so that the water content of the sludge in the sludge concentration cavity is lower and the sludge concentration quality is more stable, thereby reducing the energy consumption of subsequent sludge treatment.

[0014] According to some embodiments of the present application, the tank includes a main cylinder portion and a tapered cylinder portion connected to the bottom of the main cylinder portion, the main cylinder portion and the tapered cylinder portion jointly form the sludge concentration cavity, the top of the main cylinder portion is communicated with the sludge inflow pipeline, the bottom of the tapered cylinder portion is communicated with the sludge outflow pipeline, the sludge concentration component includes a first sludge scraping component and a driving component with a driving shaft, the driving component is arranged at the top of the main cylinder portion, the axis of the driving shaft coincides with the axis of the main cylinder portion, and the first sludge scraping component is arranged in the tapered cylinder portion and is rotationally connected to the driving shaft to rotate around the driving shaft and scrape the sludge on the inner wall of the tapered cylinder portion to the bottom of the tapered cylinder portion.

[0015] According to some embodiments of the present application, the tapered cylinder portion includes a primary tapered cylinder sub-portion and a secondary tapered cylinder sub-portion connected to the small end of the primary tapered cylinder sub-portion, the included angle between the cylinder wall of the secondary tapered cylinder sub-portion and the axis of the main cylinder portion is smaller than the included angle between the cylinder wall of the primary tapered cylinder sub-portion and the axis of the main cylinder portion, the primary tapered cylinder sub-portion is provided with the first sludge scraping component, and the sludge concentration component further includes a second sludge scraping component rotationally connected to the driving component, the secondary tapered cylinder sub-portion is provided with the second sludge scraping component, and the secondary tapered cylinder sub-portion is communicated with the sludge outflow pipeline.

[0016] According to some embodiments of the present application, the first sludge scraping component includes a rotating portion rotationally connected to the driving shaft, a rotating rod connected to one end of the rotating portion, and a plurality of sludge scraping portions connected to the rotating rod, and the plurality of sludge scraping portions are sequentially and spacedly distributed along the axis direction of the rotating rod.

[0017] According to some embodiments of the present application, the mud scraping part is arranged at an angle to the axis of the rotating rod.

[0018] According to some embodiments of the present application, the first mud scraping part is provided with a grid extending towards the top of the main cylinder part.

[0019] According to some embodiments of the present application, further comprising: a medicating assembly, the medicating assembly comprising a medicating mixer, a medicating pipeline, a medicating driving pump and a medicating flow measuring part, the medicating driving pump being communicated with the medicating mixer to mix the medicating liquid, the medicating mixer being communicated with the medicating pipeline, the medicating pipeline being communicated with the mud inlet pipeline, and the medicating flow measuring part being arranged in the medicating pipeline.

[0020] The control method according to the second aspect of the present application comprises the following steps:

[0021] S1: the control assembly pre-sets a first preset value Y1 and a second preset value Y2, the mud level measuring part detects a mud level value X1 in the sludge concentration chamber, the liquid level measuring part detects a liquid level value X2 in the sludge concentration chamber, the mud inlet flow measuring part detects a mud inlet flow value Z1, and the mud outlet flow measuring part detects a mud outlet flow value Z2;

[0022] S2: according to the numerical relationship of X1, X2, Z1, Z2, Y1 and Y2, the control assembly adjusts the mud inlet regulating valve and the mud outlet regulating valve, and the specific conditions are as follows:

[0023] If X1-X2≤Y1 and Z1 / Z2≥Y2, the control assembly controls the opening range of the mud outlet regulating valve to increase;

[0024] If X1-X2≤Y1 and Z1 / Z2<Y2, the control assembly controls the opening range of the mud inlet regulating valve to increase and controls the opening range of the mud outlet regulating valve to decrease;

[0025] If X1-X2>Y1 and Z1 / Z2<Y2, the control assembly controls the opening range of the mud outlet regulating valve to decrease;

[0026] If X1-X2>1.5*Y1 and Z1 / Z2≥Y2, the control assembly controls the opening range of the mud inlet regulating valve to increase.

[0027] The control method according to the second aspect of the present application has at least the following beneficial effects: by comparing the difference between the liquid level value X2 and the mud level value X1 with the first preset value, by comparing the ratio between the mud inlet flow value Z1 and the mud outlet flow value Z2 with the second preset value, and by controlling the mud inlet regulating valve and the mud outlet regulating valve according to the comparison result, the sludge concentration effect in the tank body is better.

[0028] According to some embodiments of the present application, the first preset value Y1=1m, the second preset value Y2=1.5, and the adjustment range of the sludge-out adjusting valve and the sludge-in adjusting valve is 15%.

[0029] According to some embodiments of the present application, in S2:

[0030] If X1-X2≤Y1, Z1 / Z2<Y2, the control component adjusts the opening range of the dosing valve to increase.

[0031] If X1-X2>Y1, Z1 / Z2<Y2, the control component adjusts the opening range of the dosing valve to increase.

[0032] Additional aspects and advantages of the present application will be given, in part, in the following description, become apparent from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0033] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0034] Figure 1 A sectional view of an integrated gravity type high-speed sludge concentration complete device according to an embodiment of the present application;

[0035] Figure 2 A structural view of an integrated gravity type high-speed sludge concentration complete device according to an embodiment of the present application;

[0036] Reference signs:

[0037] Tank body 100; sludge concentration cavity 110; sludge-in pipeline 120; sludge-out pipeline 130; center cylinder 140; clear water overflow groove 150; main cylinder part 160; conical cylinder part 170; primary conical cylinder part 171; secondary conical cylinder part 172;

[0038] Sludge concentration component 200; first sludge scraping member 210; rotating part 211; rotating rod 212; sludge scraping part 213; grid 214; driving member 220; reflecting plate 230; second sludge scraping member 240;

[0039] Sludge-in flow measuring member 310; sludge-out flow measuring member 320;

[0040] Sludge-in adjusting valve 410; sludge-out adjusting valve 420; dosing valve 430;

[0041] Dosing pipeline 510; liquid medicine flow measuring member 520. DETAILED DESCRIPTION

[0042] Embodiments of the present application are described below in the accompanying drawings, in which like reference numerals refer to like elements or elements with similar functionality throughout. The following detailed description describes embodiments that are provided for the purpose of explanation only. They are not intended to limit or restrict the application in any way.

[0043] In the description of the present application, it is to be understood that the orientation description, such as upper, lower, etc. indicates the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0044] In the description of the present application, several refers to one and more than one, and multiple refers to two and more than two. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0045] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0046] Referring to Figure 1 With Figure 2As shown, the first aspect of the present application provides a one-piece gravity type high-speed sludge concentration complete device, comprising: a tank body 100, a sludge concentration assembly 200, a measurement assembly, an adjustment assembly and a control assembly, the tank body 100 has a sludge concentration cavity 110, a sludge inlet pipeline 120 and a sludge outlet pipeline 130 which are all communicated with the sludge concentration cavity 110; the sludge concentration assembly 200 is arranged in the sludge concentration cavity 110 and used for concentrating sludge; the measurement assembly is arranged in the tank body 100, and the measurement assembly comprises a sludge inlet flow measurement element 310 used for detecting the sludge inlet flow in the sludge inlet pipeline 120, a sludge outlet flow measurement element 320 used for detecting the sludge outlet flow in the sludge outlet pipeline 130, a sludge level measurement element used for detecting the sludge position in the sludge concentration cavity 110 and a liquid level measurement element used for detecting the liquid level in the sludge concentration cavity 110; the adjustment assembly comprises a sludge inlet adjustment valve 410 communicated with the sludge inlet pipeline 120 and a sludge outlet adjustment valve 420 communicated with the sludge outlet pipeline 130, the sludge inlet adjustment valve 410 is used for controlling the opening and closing and opening range of the sludge inlet pipeline 120, and the sludge outlet adjustment valve 420 is used for controlling the opening and closing and opening range of the sludge outlet pipeline 130; the control assembly is communicatively connected with the measurement assembly and the adjustment assembly; the control assembly is configured to: acquire the sludge level value of the sludge level measurement element and the liquid level value of the liquid level measurement element, acquire the sludge inlet flow of the sludge inlet flow measurement element 310 and the sludge outlet flow of the sludge outlet flow measurement element 320, compare the sludge level value and the liquid level value after processing with a first preset value, compare the sludge inlet flow and the sludge outlet flow after processing with a second preset value, and adjust the adjustment assembly according to the comparison result.

[0047] In the embodiment, the tank body 100 is in a cylindrical shape and has a central axis, the tank body 100 is vertically placed on the ground, the outer peripheral surface of the tank body 100 has a supporting leg, the cavity in the tank body 100 forms the sludge concentration cavity 110, and when the sludge is concentrated, the clear water and the sludge are layered in the sludge concentration cavity 110, the upper layer is the clear water layer, and the lower layer is the sludge layer, wherein the central axis of the tank body 100 is further provided with a central cylinder 140 which surrounds the central axis, and the sludge inlet pipeline 120 is communicated with the central cylinder 140, so that the clear water layer is annular, the annular center position of the clear water layer is the intermediate barrier layer formed by the central cylinder 140, the sludge inlet pipeline 120 delivers the sludge and water mixture to the central cylinder 140, and the sludge and water mixture enters the sludge layer from the bottom of the central cylinder 140, at this time, the clear water floats up and is layered with the sludge. In addition, the top of the tank body 100 is provided with an odor-proof cover which can be opened and closed, the inner wall of the top of the tank body 100 is provided with an annular clear water overflow groove 150, the top of the groove wall close to the central axis of the tank body 100 is sawtooth-shaped, so as to obtain the overflowed clear water at the top of the clear water layer, the clear water overflow groove 150 is communicated with a clear water pipeline, one end of the clear water pipeline is communicated with the clear water overflow groove 150, and the other end of the clear water pipeline is communicated with the outside of the tank body 100, so as to output the clear water to the outside of the tank body 100. The sludge outlet pipeline 130 is communicated with a backwashing assembly, so as to flush the sludge outlet pipeline 130 in the opposite direction of the sludge flow direction of the sludge outlet pipeline 130, thereby reducing the risk of blockage.

[0048] After the sludge-water mixture enters the sludge concentration cavity 110 through the central cylinder 140, the sludge-water mixture directly enters the sludge layer of the gravity type high-speed sludge concentration complete device, and forms a sludge filter bed layer in the device. The sludge layer plays a filtering role and prevents the sludge from rising. The subsequent sludge-water mixture rises along the water flow, passes through the sludge filter bed layer, collides with and combines with the particles in the sludge filter bed layer, and then sinks, thereby increasing the sludge concentration and reducing the turbidity of the overflow water. Under normal working conditions, there is a clear interface between the sludge layer and the clear liquid above the sludge layer.

[0049] The sludge concentration assembly 200 is a stirring member arranged in the sludge layer to slowly stir the sludge layer, so that the clear water in the sludge layer has sufficient space to float to the clear water layer. The driving member 220 of the sludge concentration assembly 200 is an electric motor, the axis of the driving shaft of the electric motor coincides with the central axis of the tank body 100, to drive the sludge concentration assembly 200 to rotate around the central axis of the tank body 100. The bottom end of the central cylinder 140 is provided with a reflection plate 230 spaced apart from the bottom end of the central cylinder 140. The reflection plate 230 is rotationally connected to the driving shaft of the electric motor, to uniformly distribute the sludge transported by the central cylinder 140 into the sludge concentration cavity 110.

[0050] The measurement assembly includes a sludge inlet flow measurement member 310, a sludge outlet flow measurement member 320, a sludge level measurement member, and a liquid level measurement member. The sludge inlet flow measurement member 310 and the sludge outlet flow measurement member 320 are both electromagnetic flowmeters to detect the flow. The sludge level measurement member is a sludge level gauge, and the liquid level measurement member is an ultrasonic liquid level gauge. The sludge level measurement member measures the height of the sludge layer along the central axis of the tank body 100, and the liquid level measurement member measures the height of the clear water layer along the central axis of the tank body 100.

[0051] The adjustment assembly includes a sludge inlet adjustment valve 410 and a sludge outlet adjustment valve 420. The sludge inlet adjustment valve 410 controls whether the sludge inlet pipeline 120 transports sludge by opening and closing itself, and the opening range of the sludge inlet adjustment valve 410 will affect the sludge flow transported by the sludge inlet pipeline 120. The sludge outlet adjustment valve 420 has the same principle as the sludge inlet adjustment valve 410, and will not be described here.

[0052] It is worth understanding that the control assembly processes the data measured by the measurement assembly, and compares the processed data with the first preset value and the second preset value, to judge the sludge concentration condition in the sludge concentration cavity 110 in the tank body 100, and according to the corresponding sludge concentration condition, the control assembly controls the adjustment assembly to adjust, so that the water content of the sludge in the sludge concentration cavity 110 is lower, and the sludge concentration quality is more stable, thereby reducing the energy consumption of subsequent sludge treatment.

[0053] Reference Figure 1 With Figure 2As shown, in some embodiments of the present application, the tank body 100 comprises a main cylinder portion 160 and a tapered cylinder portion 170 connected to the bottom of the main cylinder portion 160, the main cylinder portion 160 and the tapered cylinder portion 170 jointly form a sludge concentration cavity 110, the top of the main cylinder portion 160 is communicated with a sludge inlet pipeline 120, the bottom of the tapered cylinder portion 170 is communicated with a sludge outlet pipeline 130, the sludge concentration assembly 200 comprises a first sludge scraping member 210 and a driving member 220 with a driving shaft, the driving member 220 is arranged at the top of the main cylinder portion 160, the axis of the driving shaft coincides with the axis of the main cylinder portion 160, and the first sludge scraping member 210 is arranged in the tapered cylinder portion 170 and is rotationally connected to the driving shaft to rotate around the driving shaft and scrape the sludge on the inner wall of the tapered cylinder portion 170 to the bottom of the tapered cylinder portion 170.

[0054] In the present embodiment, the central axes of the main cylinder portion 160 and the tapered cylinder portion 170 coincide, the main cylinder portion 160 is in a cylindrical shape, and the tapered cylinder portion 170 is in a conical shape, so the tapered cylinder portion 170 has a large end and a small end, the large end of the tapered cylinder portion 170 is connected to the bottom end of the main cylinder portion 160, and the diameters of the two are consistent, wherein the clear water layer and part of the sludge layer are distributed in the main cylinder portion 160, and the clear water layer is located above the sludge layer, and the other part of the sludge layer is distributed in the tapered cylinder portion 170, when the sludge layer is located in the tapered cylinder portion 170, the sludge will move towards the bottom end of the tapered cylinder portion 170, i.e. the small end of the tapered cylinder portion 170, under the influence of gravity, to realize the precipitation of the sludge, and in the direction from the large end to the small end of the tapered cylinder portion 170, the cross section of the tapered cylinder portion 170 perpendicular to the central axis is reduced, so that the sludge is extruded and then compressed, thereby improving the compression effect of the sludge, and the tapered cylinder portion 170 can separate the fine solid particles entrained by the liquid and stabilize the sludge layer without disturbance, so that the tapered cylinder portion 170 not only shortens the settling distance but also increases the settling area.

[0055] The sludge concentration assembly 200 comprises the first sludge scraping member 210, which can rotate under the driving of the driving member 220 and scrape the sludge on the inner wall of the tapered cylinder portion 170, so as to avoid the deposition of the sludge on the inner wall of the tapered cylinder portion 170, and at the same time, the first sludge scraping member 210 stirs the sludge in the sludge layer, so that the interface between the clear water layer and the sludge layer fluctuates, thereby exposing the gap, and the clear water in the sludge layer is more likely to float up to the clear water layer through the gap, thereby reducing the water content in the sludge and improving the sludge concentration effect.

[0056] In addition, the top end of the tank body 100 is provided with a mounting plate, the driving member 220 is mounted on the mounting plate, and the sludge concentration assembly 200 is hoisted as a whole in the sludge concentration cavity 110.

[0057] Reference Figure 1 With Figure 2As shown, in some embodiments of the present application, the tapered cylinder portion 170 comprises a primary tapered cylinder sub-portion 171 and a secondary tapered cylinder sub-portion 172 connected to the small end of the primary tapered cylinder sub-portion 171, the angle between the cylinder wall of the secondary tapered cylinder sub-portion 172 and the axis of the main cylinder portion 160 is smaller than the angle between the cylinder wall of the primary tapered cylinder sub-portion 171 and the axis of the main cylinder portion 160, the primary tapered cylinder sub-portion 171 is provided with a first sludge scraping member 210, and the sludge concentration assembly 200 further comprises a second sludge scraping member 240 rotatably connected to a driving member 220, the secondary tapered cylinder sub-portion 172 is provided with the second sludge scraping member 240, and the secondary tapered cylinder sub-portion 172 is connected to the sludge outlet pipeline 130.

[0058] It is worth understanding that the sludge is compressed twice by the primary tapered cylinder sub-portion 171 and the secondary tapered cylinder sub-portion 172, thereby improving the concentration effect of the sludge, and the inclination angle of the secondary tapered cylinder sub-portion 172 is greater than that of the primary tapered cylinder sub-portion 171, so that the concentration effect of the secondary tapered cylinder sub-portion 172 on the sludge is better, and the sludge in the secondary tapered cylinder sub-portion 172 is agitated by the second sludge scraping member 240, thereby improving the treatment effect of the sludge in the secondary tapered cylinder sub-portion 172.

[0059] Referring to Figure 1 As shown, in some embodiments of the present application, the first sludge scraping member 210 comprises a rotating portion 211 rotatably connected to a driving shaft, a rotating rod 212 connected to one end of the rotating portion 211, and a plurality of sludge scraping portions 213 connected to the rotating rod 212, and the plurality of sludge scraping portions 213 are sequentially and spacedly distributed along the axis direction of the rotating rod 212.

[0060] It is worth understanding that the sludge is scraped by the plurality of sludge scraping portions 213 connected to the rotating rod 212, and the sludge scraping portions 213 are spacedly distributed, and when the sludge on the inner wall of the tapered cylinder portion 170 is scraped by the sludge scraping portions 213, the scraped sludge can be precipitated through the space between the sludge scraping portions 213, avoiding the sludge overflowing upward and entering the area where the raw clear water layer is located, thereby improving the treatment effect of the sludge.

[0061] Referring to Figure 2 As shown, in some embodiments of the present application, the top of the first sludge scraping member 210 is provided with a grid 214 extending towards the top of the main cylinder portion 160. It is worth understanding that part of the grid 214 extends into the clear water layer and part of the grid 214 extends into the sludge layer, and the grid 214 agitates the sludge with the rotation of the first sludge scraping member 210, and forms a small vortex at the junction of the sludge layer and the clear water layer, promotes the coagulation of sludge particles, and forms cavities, destroys the network structure of the sludge, and promotes the escape of interstitial water and bubbles between sludge particles.

[0062] Referring to Figure 1As shown, in some embodiments of the present application, the mud scraping part 213 is arranged at an angle with the axis of the rotating rod 212. It is worth understanding that the mud scraping part 213 and the axis of the rotating rod 212 are arranged at an angle, so that the mud scraping part 213 can be tilted to scrape the sludge on the inner wall of the conical cylinder part 170, and the contact effect of the mud scraping part 213 with the conical cylinder part 170 is better.

[0063] Referring to Figure 2 As shown, in some embodiments of the present application, the medicating assembly further comprises a medicating mixer, a medicating pipeline 510, a medicating driving pump and a medicating flow measuring element 520, the medicating driving pump is communicated with the medicating mixer to mix the medicating liquid, the medicating mixer is communicated with the medicating pipeline 510, the medicating pipeline 510 is communicated with the sludge inlet pipeline 120, and the medicating flow measuring element 520 is arranged in the medicating pipeline 510.

[0064] Wherein, the medicating pipeline 510 is further provided with a medicating valve 430 to control the flow of the medicating liquid in the medicating pipeline 510.

[0065] It should be noted that, in order to accelerate the precipitation of sludge, a coagulant aid is often added to the sludge to achieve the conditioning of the sludge, wherein the coagulant aid is the medicament added by the medicating assembly. In this embodiment, the organic cationic polymer flocculant (PAM+) is prepared into an aqueous solution and added to the sludge-water mixture, which produces compressed double electric layers, so that the sludge particles in the sludge-water mixture lose stability, the colloidal particles coagulate with each other to increase the size of the particles, and form flocculation bodies and alunite flowers. When the flocculation bodies grow to a certain volume, they are separated from the water phase under the action of gravity and precipitate. During the precipitation process, the particles collide and coagulate with each other, their size and mass continuously increase, and the settling velocity continuously increases, thereby realizing efficient concentration of the sludge.

[0066] It is worth understanding that the medicating assembly controls the dosage of the medicating liquid added to the tank 100, so that the dosage of the medicating liquid is appropriate, which avoids waste and at the same time achieves a good coagulation effect.

[0067] In this embodiment, the mixed medicating liquid is prepared in the medicating mixer, and the medicating liquid is input into the sludge inlet pipeline 120 by the medicating driving pump to condition the sludge-water mixture in the sludge inlet pipeline 120. The medicating flow measuring element 520 can monitor the flow of the medicating liquid in real time, and the medicating control valve can control the amount of the medicating liquid added to adjust the flow of the added medicating liquid.

[0068] The second aspect of the present application provides a control method, comprising the following steps:

[0069] S1: the control assembly presets a first preset value Y1 and a second preset value Y2, the sludge level measuring member detects a sludge level value X1 in the sludge thickening chamber 110, the liquid level measuring member detects a liquid level value X2 in the sludge thickening chamber 110, the sludge inflow measuring member 310 detects a sludge inflow value Z1, and the sludge outflow measuring member 320 detects a sludge outflow value Z2;

[0070] S2: according to the numerical relationship of X1, X2, Z1, Z2, Y1 and Y2, the control assembly adjusts the sludge inflow regulating valve 410 and the sludge outflow regulating valve 420, which specifically includes the following cases:

[0071] If X1-X2≤Y1 and Z1 / Z2≥Y2, the control assembly controls the sludge outflow regulating valve 420 to increase the opening range;

[0072] If X1-X2≤Y1 and Z1 / Z2<Y2, the control assembly controls the sludge inflow regulating valve 410 to increase the opening range and controls the sludge outflow regulating valve 420 to decrease the opening range;

[0073] If X1-X2>Y1 and Z1 / Z2<Y2, the control assembly controls the sludge outflow regulating valve 420 to decrease the range;

[0074] If X1-X2>1.5*Y1 and Z1 / Z2≥Y2, the control assembly controls the sludge inflow regulating valve 410 to increase the range.

[0075] The first preset value Y1 and the second preset value Y2 are values preset according to actual use needs.

[0076] It is worth understanding that the difference between the liquid level value X2 and the sludge level value X1 is compared with the first preset value, the ratio of the sludge inflow value Z1 and the sludge outflow value Z2 is compared with the second preset value, and the sludge inflow regulating valve 410 and the sludge outflow regulating valve 420 are controlled according to the comparison result, so that the sludge thickening effect in the tank body 100 is better.

[0077] Referring to Figure 1 In some embodiments of the present application, in S2:

[0078] If X1-X2≤Y1 and Z1 / Z2<Y2, the control assembly adjusts the opening range of the dosing valve 430 to increase;

[0079] If X1-X2>Y1 and Z1 / Z2<Y2, the control assembly adjusts the opening range of the dosing valve 430 to increase.

[0080] The opening range of the dosing valve 430 can be monitored by the chemical liquid flow measuring member 520.

[0081] The following is an example of the second preset value Y1 = 1m, the second preset value Y2 = 1.5, the adjustment range of the sludge discharge adjusting valve 420 and the sludge inlet adjusting valve 410 is 15%, and the adjustment range of the chemical adding valve 430 is 10%, which is described as follows:

[0082] When X1-X2≤1 and Z1 / Z2≥1.5, the concentration effect of the concentration system is good, but the amount of sludge in the tank is large, and the sludge discharge amount needs to be increased. The control assembly controls the opening of the sludge discharge adjusting valve 420 to increase by 15%, until the sludge level is reduced to 1 / 3 of the height of the tank 100, and the sludge discharge adjusting valve 420 is restored to the normal opening.

[0083] When X1-X2≤1 and Z1 / Z2<1.5, the concentration effect of the concentration system is poor, and the sludge inlet amount needs to be reduced and the chemical adding amount needs to be increased. The sludge inlet adjusting valve 410 opening is adjusted to be small by 15%, and the chemical adding valve 430 is increased by 10%, until the sludge level meter and the ultrasonic liquid level difference are greater than 1m, and the sludge inlet adjusting valve 410 is restored to the normal opening, and the chemical adding valve 430 is restored to the normal opening.

[0084] If X1-X2>1 and Z1 / Z2<1.5, the concentration effect in the concentration system is not good, and the sludge discharge amount needs to be reduced and the chemical adding amount needs to be increased. The sludge discharge adjusting valve 420 opening is adjusted to be small by 15%, and the chemical adding valve 430 is increased by 10%, until Z1 / Z2≥1.5, and the sludge discharge adjusting valve 420 is restored to the normal opening, and the chemical adding valve 430 is restored to the normal opening.

[0085] If X1-X2>1.5 and Z1 / Z2≥1.5, the concentration effect in the concentration system is good, and the sludge inlet amount needs to be increased. The sludge inlet adjusting valve 410 opening is adjusted to be large by 15%, until X1-X2≤1.5, and the sludge inlet adjusting valve 410 is restored to the normal opening.

[0086] Through the above control method, the sludge concentration state in the sludge concentration cavity 110 is maintained in dynamic balance, the sludge concentration effect in the sludge concentration cavity 110 is stabilized, and the sludge concentration quality is improved.

[0087] The embodiments of the application are described in detail above with reference to the drawings, but the application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the application.

Claims

1. An integrated gravity high speed sludge thickening package, characterized in that, The application relates to a sludge thickening device, which comprises the following components: a tank body with a sludge thickening cavity, a sludge inlet pipeline and a sludge outlet pipeline which are connected to the sludge thickening cavity; a sludge thickening assembly arranged in the sludge thickening cavity and used for thickening sludge; a measuring assembly arranged in the tank body, wherein the measuring assembly comprises a sludge inlet flow measuring element used for detecting the sludge inlet flow in the sludge inlet pipeline, a sludge outlet flow measuring element used for detecting the sludge outlet flow in the sludge outlet pipeline, a sludge level measuring element used for detecting the sludge position in the sludge thickening cavity and a liquid level measuring element used for detecting the liquid level in the sludge thickening cavity; an adjusting assembly comprising a sludge inlet adjusting valve connected to the sludge inlet pipeline and a sludge outlet adjusting valve connected to the sludge outlet pipeline, wherein the sludge inlet adjusting valve is used for controlling the opening and closing and opening range of the sludge inlet pipeline, and the sludge outlet adjusting valve is used for controlling the opening and closing and opening range of the sludge outlet pipeline; a control assembly which is communicatively connected to the measuring assembly and the adjusting assembly; the control assembly is configured to acquire the sludge level value of the sludge level measuring element and the liquid level value of the liquid level measuring element, acquire the sludge inlet flow of the sludge inlet flow measuring element and the sludge outlet flow of the sludge outlet flow measuring element, compare the sludge level value and the liquid level value after processing with a first preset value, compare the sludge inlet flow and the sludge outlet flow after processing with a second preset value, and adjust the adjusting assembly according to the comparison result; the control assembly comprises the following steps: S1: the control assembly presets the first preset value Y1 and the second preset value Y2, the sludge level measuring element detects the sludge level value X1 in the sludge thickening cavity, the liquid level measuring element detects the liquid level value X2 in the sludge thickening cavity, wherein the liquid level measuring element measures the height of the clear water layer along the central axis of the tank body, the sludge inlet flow measuring element detects the sludge inlet flow value Z1, and the sludge outlet flow measuring element detects the sludge outlet flow value Z2; S2: according to the numerical relationship of X1, X2, Z1, Z2, Y1 and Y2, the control assembly adjusts the sludge inlet adjusting valve and the sludge outlet adjusting valve, and the adjustment specifically includes the following cases: if X1-X2<=Y1 and Z1 / Z2>=Y2, the control assembly controls the opening range of the sludge outlet adjusting valve to increase; if X1-X2<=Y1 and Z1 / Z2Y2, the control assembly controls the opening range of the sludge inlet adjusting valve to increase and controls the opening range of the sludge outlet adjusting valve to decrease; if X1-X2>Y1 and Z1 / Z2Y2, the control assembly controls the opening range of the sludge outlet adjusting valve to decrease; if X1-X2>1.5*Y1 and Z1 / Z2>=Y2, the control assembly controls the opening range of the sludge inlet adjusting valve to increase.

2. The integrated gravity-based high-speed sludge thickening package as claimed in claim 1, wherein: The tank body comprises a main cylinder part and a tapered cylinder part connected to the bottom of the main cylinder part, the main cylinder part and the tapered cylinder part jointly form the sludge concentration cavity, the top of the main cylinder part is communicated with the sludge inlet pipeline, the bottom of the tapered cylinder part is communicated with the sludge outlet pipeline, the sludge concentration assembly comprises a first sludge scraping member and a driving member with a driving shaft, the driving member is arranged at the top of the main cylinder part, the axis of the driving shaft coincides with the axis of the main cylinder part, the first sludge scraping member is arranged in the tapered cylinder part and is rotationally connected to the driving shaft to rotate around the driving shaft and scrape the sludge on the inner wall of the tapered cylinder part to the bottom of the tapered cylinder part.

3. The integrated gravity-based high speed sludge thickening package as claimed in claim 2, wherein: The tapered cylinder part comprises a primary tapered cylinder subpart and a secondary tapered cylinder subpart connected to the small end of the primary tapered cylinder subpart, the angle between the cylinder wall of the secondary tapered cylinder subpart and the axis of the main cylinder part is smaller than the angle between the cylinder wall of the primary tapered cylinder subpart and the axis of the main cylinder part, the first sludge scraping member is arranged in the primary tapered cylinder subpart, and the sludge concentration assembly further comprises a second sludge scraping member rotationally connected to the driving shaft, the second sludge scraping member is arranged in the secondary tapered cylinder subpart, and the secondary tapered cylinder subpart is communicated with the sludge outlet pipeline.

4. The integrated gravity-based high speed sludge thickening package as claimed in claim 2 wherein: The first sludge scraping member comprises a rotating part rotationally connected to the driving shaft, a rotating rod connected to the rotating part at one end, and a plurality of sludge scraping parts connected to the rotating rod, the plurality of sludge scraping parts are sequentially and spacedly distributed along the axis direction of the rotating rod.

5. The integrated gravity-based high-speed sludge thickening package as claimed in claim 4, wherein: The sludge scraping part is arranged at an angle to the axis of the rotating rod.

6. The integrated gravity-based high speed sludge thickening package as claimed in claim 2 wherein: The first sludge scraping member is provided with a grid extending towards the top of the main cylinder part.

7. The integrated gravity-based high speed sludge thickening package as claimed in claim 1 wherein, Further comprising: A dosing assembly, the dosing assembly comprises a dosing mixer, a dosing pipeline, a dosing driving pump and a liquid flow measuring member, the dosing driving pump is communicated with the dosing mixer to mix liquid medicine, the dosing mixer is communicated with the dosing pipeline, the dosing pipeline is communicated with the sludge inlet pipeline, and the liquid flow measuring member is arranged in the dosing pipeline.

8. The integrated gravity-based high-speed sludge thickening package as claimed in claim 1, wherein: The first preset value Y1 is 1m, the second preset value Y2 is 1.5, and the adjustment range of the sludge outlet adjusting valve and the sludge inlet adjusting valve is 15%.

9. The integrated gravity-based high speed sludge thickening package as claimed in claim 1 wherein, In S2: If X1-X2≤Y1 and Z1 / Z2<Y2, the control assembly increases the opening range of the dosing valve; If X1-X2>Y1 and Z1 / Z2<Y2, the control assembly increases the opening range of the dosing valve.

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