Flocculent sludge collection device and flocculent sludge collection method

Abstract

The present invention provides a flocculent sludge collection device and a flocculent sludge collection method, wherein the collection device comprises a mud flushing unit, wherein the mud flushing unit comprises a water inlet pipe and a mud flushing module, wherein an injection duct is arranged in the mud flushing module; wherein the water inlet pipe is communicated with the injection duct; and a mud suction unit, wherein the mud suction unit comprises a water outlet pipe and a mud suction module, wherein a sample suction port is arranged in the mud suction module, wherein the water outlet pipe is communicated with the sample suction port; and a closed mud storage space can be formed between the mud flushing module and the mud suction module. The present invention solves the problem that the flow state collection capability of the bottom mud sampling equipment in the prior art is poor, and in particular, the problem that flocculent sludge cannot be collected is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge sampling, and in particular relates to a flocculent sludge collecting device and a flocculent sludge collecting method. Background Art

[0002] The sedimentation problem of municipal engineering sewage pipes has a great impact on the normal operation of the pipe network. Therefore, the sampling of mud samples in the sewage pipe network plays a vital role in the monitoring process of the pipe network. However, since most of the sewage pipe sediment is sewage flocculent sediment (flocculent sludge), it has a high water content and weak structural strength. The existing sediment sampling equipment has poor flow sampling ability, especially for flocculent sludge, it is impossible to collect it. That is, the mud sample will flow through the gap of the clamp of the sediment sampling equipment, or be affected by the sediment sampling equipment and washed away by the water flow. In addition, the existing sediment sampling equipment is only suitable for sediment sampling in relatively open environments such as rivers, lakes, reservoirs and shallow sea areas, and cannot meet the limited working environment underground. In order to meet the scientificity, representativeness and accuracy of the municipal pipe network pipeline sediment sampling work, there is an urgent need for a device that can collect flocculent sediment to solve the problem of sampling flocculent sludge. Summary of the invention

[0003] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a flocculent sludge collection device and a flocculent sludge collection method with stronger sludge collection ability, so as to solve the problem that the sediment sampling equipment in the prior art has poor sampling ability and poor effect, especially the inability to collect flocculent sludge.

[0004] To achieve the above-mentioned purpose and other related purposes, in a first aspect, the present invention provides a flocculent sludge collection device, including a mud flushing unit, the mud flushing unit including a water inlet pipe and a mud flushing module, the mud flushing module is provided with an injection duct; the water inlet pipe is communicated with the injection duct; a mud suction unit, the mud suction unit including a water outlet pipe and a mud suction module, the mud suction module is provided with a sample suction port, the water outlet pipe is communicated with the sample suction port; and a mud storage space closed on all sides can be formed between the mud flushing module and the mud suction module.

[0005] Preferably, the mud flushing module includes a propulsion block and a guide block, the propulsion block is fixedly connected to the guide block, and the injection duct is formed between the propulsion block and the guide block, and the water spray port of the injection duct is directed toward the mud suction module; the guide block is provided with a water inlet hole, the water inlet hole is communicated with the injection duct, and the water inlet pipe is fixedly connected to the guide block and communicated with the water inlet hole.

[0006] Preferably, the propulsion block is provided with a concave guide groove, the opening of the guide groove faces the mud suction module, the guide block is fixedly connected in the guide groove, and the injection duct is formed between the side wall of the guide block and the side wall of the guide groove.

[0007] Preferably, the guide block is fixedly connected to the side wall of the guide groove through a bracket, and the guide block is arranged in the middle of the guide groove.

[0008] Preferably, a guide skirt is provided at the upper edge of the propulsion block and extends downward toward the mud suction module, and the guide skirt can guide the water flow sprayed from the injection duct to spray downward.

[0009] Preferably, a central guide column is provided in the middle of the guide groove, and the central guide column extends into the water inlet hole.

[0010] Preferably, the propulsion block is conical, the area of ​​the cross section at the first end of the propulsion block is smaller than the area of ​​the cross section at the second end of the propulsion block, and a support plate is provided at the first end of the propulsion block.

[0011] Preferably, a water outlet hole is further provided on the mud suction module, the water outlet hole is connected with the sample suction port, the water outlet pipe is connected with the water outlet hole, and the sample suction port includes a sample suction separation port portion, and the height of the water outlet hole is higher than the height of the sample suction separation port portion.

[0012] Preferably, a water inlet pipe supporting groove is also provided on the mud suction module.

[0013] In a second aspect, the present invention further provides a method for collecting flocculent sludge, comprising:

[0014] S1, placing a mud flushing module and a mud suction module on a mud deposition wall at intervals, wherein mud is deposited on the mud deposition wall, and a mud storage space closed on all sides is formed between the mud flushing module and the mud suction module, wherein the mud storage space contains mud to be sampled;

[0015] S2, the water inlet pipe supplies water to the injection duct of the mud flushing module, and the water is sprayed to the sludge in the mud storage space through the injection duct;

[0016] S3, the water flow washes the silt to form muddy water, the muddy water is sucked away by the sample suction port of the mud suction module, and the muddy water is introduced into the sampling container through the water outlet pipe;

[0017] S4. Decant the water in the muddy water in the sampling container to obtain a sludge sample.

[0018] As described above, a flocculent sludge collection device and a flocculent sludge collection method of the present invention have the following beneficial effects: Based on the above-mentioned collection device and collection method, the present invention uses a mud flushing unit to flush the sludge in the mud storage space surrounded by the mud flushing module and the mud suction module, so that the sludge is rolled up by the water flow and mixed into muddy water. Since the mud storage space is closed on all sides, the mixed muddy water will not flow out to the outside, and then the muddy water blocked in the mud storage space is sucked away through the sample suction port on the mud suction module, and is led out to a set container through a water outlet pipe. Finally, the water in the muddy water in the container is decanted to obtain a sludge sample, thereby realizing the collection of the sludge sample. This method solves the problem that the bottom mud sampling equipment in the prior art clamps the sludge by a clamp, which causes the sludge to easily flow out from the gap of the clamp, and has poor flow collection ability, especially the problem that flocculent sludge cannot be collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the flocculent sludge collecting device provided by the present invention when in use.

[0020] Figure 2 This is a working schematic diagram of the flocculent sludge collecting device provided by the present invention when in use.

[0021] Figure 3 This is a three-dimensional schematic diagram of the mud flushing unit provided by the present invention.

[0022] Figure 4 This is a front view of the mud flushing unit provided by the present invention.

[0023] Figure 5 The figure is a side view of the mud flushing unit provided by the present invention.

[0024] Figure 6 This is a three-dimensional schematic diagram of the mud suction unit provided by the present invention.

[0025] Figure 7 This is a front view of the mud suction unit provided by the present invention.

[0026] Figure 8 The figure is a side view of the mud suction unit provided by the present invention.

[0027] Fig. 9 The present invention provides a flow chart of the flocculent sludge collection method.

[0028] Component number description:

[0029] 1 Mud flushing unit

[0030] 10 Mud flushing module

[0031] 11 Water inlet pipe

[0032] 110 Water inlet

[0033] 101 Propulsion Block

[0034] 102 guide block

[0035] 100 Jet duct

[0036] 103 Diversion channel

[0037] 104 Guide skirt

[0038] 105 Central guide column

[0039] 106 Bracket

[0040] 1011 Support ring

[0041] 1012 Support Plate

[0042] 1013 Counterweight

[0043] 2 Mud suction unit

[0044] 20 Suction module

[0045] 21 Water outlet pipe

[0046] 210 Water outlet

[0047] 211 Water barrier

[0048] 200 Sample suction port

[0049] 201 Sample suction and separation port

[0050] 202 Water inlet pipe support groove

[0051] 30 Mud storage space DETAILED DESCRIPTION

[0052] The structures, proportions, sizes, etc. of the attached figures of the present invention are only used to match the contents disclosed in the specification so as to be understood and read by those familiar with the technology. They are not used to limit the conditions for implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size shall still fall within the scope of the technical contents disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "front", "back", "left", "right", "middle", "first", "second", etc. cited in this specification are only for the convenience of description, and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationship shall also be regarded as the scope of implementation of the present invention without substantially changing the technical contents.

[0053] In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0055] The present invention provides a flocculent sludge collecting device, such as Figures 1 to 8 As shown, the collection device includes a mud flushing unit 1 and a mud suction unit 2. The mud flushing unit 1 includes a mud flushing module 10 and a water inlet pipe 11. An injection duct 100 is provided in the mud flushing module 10, and the water inlet pipe 11 is communicated with the injection duct 100; the mud suction unit 2 includes a mud suction module 20 and a water outlet pipe 21. A sample suction port 200 is provided in the mud suction module 20, and the water outlet pipe 21 is communicated with the sample suction port 200. The mud flushing module 10 and the mud suction module 20 can enclose a mud storage space 30 which is closed on all sides.

[0056] When the flocculent sludge collection device of the present invention is used to collect sludge samples, the sludge in the sludge storage space 30 surrounded by the sludge flushing module 10 and the sludge suction module 20 is flushed by the sludge flushing unit 1, so that the sludge is rolled up by the water flow and mixed into muddy water. Since the sludge storage space 30 is closed on all sides, the mixed muddy water will not flow outward, and then the muddy water blocked in the sludge storage space is sucked away through the sample suction port on the sludge suction module, and led to a set container through the outlet pipe. Finally, the water in the muddy water in the container is decanted to obtain a sludge sample, thereby realizing the collection of sludge samples. The sampling device has a simple structure and good sampling effect, and solves the problem that the bottom mud sampling device in the prior art clamps the sludge by a clamp, which causes the sludge to easily flow out of the clamp gap, resulting in poor collection ability, especially the inability to collect flocculent sludge.

[0057] Specifically, Figures 3 to 5As shown, the mud flushing module 10 includes a propulsion block 101 and a guide block 102 fixedly connected to the propulsion block 101, and the injection duct 100 is formed between the guide block 102 and the propulsion block 101. In order to better flush and roll up the silt to approach the mud suction module 20, preferably, in this embodiment, the water spray port of the injection duct 100 is facing the mud suction module 20.

[0058] In one embodiment, when the collection device is used to collect sludge in a sewage pipe, the sludge flushing module 10 and the sludge suction module 20 can form a closed sludge storage space 30 between the pipe, so that the sludge flushing module 10 and the sludge suction module 20 can fit the bottom of the sewage pipe. Figures 3 to 8 As shown, the propulsion block 101 in the mud flushing module 10 is conical, and the end of the propulsion block 101 with a larger cross section can fit with the bottom of the sewage pipe; the mud suction module 20 is provided with a semi-circular mud retaining sill 211, which can fit with the bottom of the sewage pipe, and thus a mud storage space closed on all sides can be formed between the propulsion block 101 of the mud flushing module 10 and the mud retaining sill 211 in the mud suction module 20 and the side wall of the sewage pipe. Further, in order to prevent the mud flushing module 10 from tipping over due to the impact force of the water flow when the mud flushing module 10 sprays water, so that the propulsion block 101 can better fit with the bottom of the sewage pipe stably to work, specifically, a support ring 1011 is also provided at the end of the propulsion block 101 with a larger cross section, and a support plate 1012 and a counterweight block 1013 are provided at the end of the propulsion block 101 with a smaller cross section. When in use, the support ring 1011, the support plate 1012 and the counterweight block 1013 enable the propulsion block 101 (i.e. the entire mud flushing module) to work stably and closely against the bottom of the sewage pipe, thereby preventing the mud flushing module 10 from tipping over due to the impact force of the water flow when spraying water, causing the water outlet of the injection duct 100 to spray in other directions, and the mud and water rolled up by the water flow to flow out of the mud storage space, causing mud sample loss.

[0059] Furthermore, in order to make the water spraying direction of the jet duct 100 opposite to the water flow direction in the water inlet pipe 11, the water inlet pipe 11 can be on the same side as the mud suction unit 2 while the water spray port of the jet duct 100 is facing the mud suction module 20, so that the staff can put the whole device into the sewage pipe at the same inspection well, and can operate the mud flushing unit 1 and the mud suction unit 2 at the same position (for example, control the water flushing volume of the mud flushing unit and the sample suction volume of the mud suction unit), without arranging personnel to operate at the mud flushing unit and the mud suction unit respectively, thus saving labor costs. In order to achieve this purpose, preferably, in this embodiment, specifically as Figure 4As shown, a concave guide groove 103 is provided on the propulsion block 101, the opening of the guide groove 103 faces the mud suction module 20, the guide block 102 is fixedly connected in the guide groove 103, that is, the side wall of the guide block 102 and the side wall of the guide groove 103 constitute the injection duct 100, and a water inlet hole 110 is provided on the guide block 102, the water inlet hole 110 is communicated with the injection duct 100, and the water inlet pipe 11 is fixedly connected to the guide block 102 and communicated with the water inlet hole 110. After the water flow in the water inlet pipe 11 enters the injection duct 100 through the water inlet hole 110, it is guided by the injection duct 100 and sprayed in the direction opposite to the water flow direction in the water inlet pipe 11, that is, in the direction of the mud suction module 20.

[0060] Furthermore, in order to prevent the water inlet pipe 11 from contacting the sludge at the bottom of the sewage pipe and thus affecting the collection of the sludge sample, preferably, in this embodiment, Figure 6 As shown, a water inlet pipe support groove 202 is provided on the mud suction module 20. When in use, Figure 1 As shown, one end of the water inlet pipe 11 is placed on the water inlet pipe support groove 202, one end of the water inlet pipe 11 is supported by the water inlet pipe support groove 202, and the other end is supported by the guide block 102 in the mud flushing module 10, so that a part of the water inlet pipe 11 between the mud flushing module 10 and the mud suction module 20 is erected to avoid contact with the sludge at the bottom of the sewage pipe, thereby avoiding the influence on the collection of sludge samples.

[0061] Furthermore, in order to make the water flow ejected from the jet duct 100 in a ring shape, it is adapted to the shape of the pipeline so as to better flush the silt in the pipeline. Figure 3 and Figure 4 As shown, in this embodiment, the guide block 102 is fixedly connected to the side wall of the guide groove 103 through a bracket 106, and the guide block 102 is located in the middle of the guide groove 103, and the guide groove 103 and the guide block 102 are both conical, that is, the water spray port of the injection duct formed between the side wall of the guide block 102 and the side wall of the guide groove 103 is annular. Preferably, in this embodiment, the guide block 102 is fixedly connected to the middle of the guide groove 103 through four brackets, and the four brackets are evenly spaced along the circumference of the guide groove.

[0062] Preferably, in order to make the water flow sprayed from the upper part of the water spray port of the jet duct 100 spray downward to increase the flushing force on the bottom sludge and reduce the amount of water sprayed, preferably, in this embodiment, a guide skirt 104 extending toward the direction of the sludge suction module 20 is further provided at the edge of the upper end of the push block 101, and the opening of the guide skirt 104 is downward, thereby guiding the water flow sprayed from the upper part of the water spray port of the jet duct 100 to spray downward to flush the bottom sludge.

[0063] Further, in order to make the water flow in the water inlet pipe 11 disperse in a ring shape better when entering the injection duct 100, preferably, in this embodiment, Figure 4 As shown, a central guide column 105 is further provided in the middle of the guide groove 103, one end of the central guide column 105 extends into the water inlet hole 110, and the central axis of the central guide column 105 is colinear with the central axis of the water inlet hole 110. When the water flow in the water inlet pipe 11 enters the jet duct 100 through the water inlet hole 110, the water column coming out of the water inlet pipe 11 is firstly affected by the central guide column 105, and then uniformly flows into the jet duct 100 in a circular shape with the central guide column 105 as the center.

[0064] Further, such as Figures 6 to 8 As shown, in the present embodiment, in order to more evenly absorb the mud and water blocked in the mud storage space, the sample suction port 200 is semi-circular, and a water outlet hole 210 is also provided on the mud suction module 20. The water outlet hole 210 is connected to the sample suction port 200, and the sample suction port includes a sample suction separation port portion 201. The height of the water outlet hole 210 is higher than the height of the sample suction separation port portion 201, and the water outlet pipe 21 is connected to the water outlet hole 210. Taking into account that there may still be a small amount of sandy sludge in the bottom mud of the sewage pipe, and the flocculent sludge will cover the surface of the sandy sludge, so the muddy water mixed with the bottom mud of the sewage pipe by the water flow still contains a small amount of sandy sludge. In this embodiment, by making the height of the water outlet 210 higher than the height of the sample suction and separation port 201, when collecting the flocculent sludge in the sewage pipe, by controlling the water spraying amount of the mud flushing unit (that is, the amount of water in the mud storage space), when the height of the water (muddy water) in the mud storage space is about to exceed the height of the mud suction module, the water spraying is stopped to prevent the muddy water in the mud storage space from overflowing the mud suction module and causing the mud sample to flow out. Lose, and then wait for a period of time. Since the flocculent sludge is small and light, while the sandy sludge is large and heavy, when the mud water composed of the sludge flushed by the mud flushing module reaches the sample suction port 200, the sandy sludge will sink to the lower part of the mud water, and the flocculent sludge will be suspended in the upper part of the mud water. The flocculent sludge suspended in the upper part of the mud water is sucked away with the water through the water outlet 210 and the water outlet pipe 21 by the suction force of the water pump, while the mud water below the water outlet 210, that is, at the sample suction and separation port 201, will be retained in the lower part and cannot be sucked out, thereby achieving the effect of separating the flocculent sludge from the sandy sludge and collecting only the flocculent sludge.

[0065] Specifically, in the present embodiment, a liquid level switch (not shown in the figure) is provided at the upper edge of the mud suction module 20, and the liquid level switch is electrically connected to the water source switch. When the amount of water in the mud storage space reaches the position of the liquid level switch, the liquid level switch is triggered to send a signal to control the water source switch to close, thereby realizing automatic control of the amount of water in the mud storage space to prevent the water in the mud storage space from flooding the mud suction module and causing the mud sample to be lost.

[0066] Specifically, when collecting flocculent sludge in sewage pipes, Figure 2As shown, first, the mud flushing unit 1 and the mud suction unit 2 are lowered from the same inspection well into the sewage pipe, and then the mud flushing module 10 is pulled to the next inspection well. During this process, the mud flushing module 10 is made slightly higher than the mud surface at the bottom of the sewage pipe, so that large pieces of solid garbage on the mud surface can be pushed to the next inspection well, avoiding that when the flocculent sludge in the mud storage space 30 enclosed by the mud flushing module 10 and the mud suction module 20 and the side wall of the pipe is collected, the garbage in the mud storage space 30 blocks the sample suction port 200 in the mud suction module 20, thereby affecting the collection work. Then, the water spray port of the injection duct 100 in the mud flushing module 10 is aligned with the sample suction port 200 in the mud suction module 20, the water inlet pipe is connected to the water source, the water outlet pipe is connected to the water pump, the water source switch is turned on, and water flows through the water inlet pipe 11 and the water inlet hole 110 into the injection duct 100, and then is sprayed out from the water spray port of the injection duct 100 to flush the bottom silt in the mud storage space 30 and roll it up to mix it into muddy water. At the same time, in the process of the mud flushing module 10 spraying water to flush the silt, the water inlet pipe 11 is pulled to drive the mud flushing module 10 to slowly approach the mud suction module 20. When the amount of water (muddy water) in the mud storage space 30 reaches the position of the liquid level switch, the liquid level switch will be triggered to send a signal to control the water source switch to close, thereby stopping the mud flushing module from spraying water to prevent the muddy water in the mud storage space from overflowing the mud suction module and causing the mud sample to be lost. After standing for a period of time, since the flocculent silt is small and light in volume and the sandy silt is large and heavy in volume, the sandy silt and the flocculent silt will be separated, that is, the sandy silt will sink to the bottom of the muddy water, and the flocculent silt will be suspended in the upper part of the muddy water. Then the water pump is turned on, and the flocculent silt suspended in the upper part of the muddy water is sucked by the water pump through the water outlet 210. The water is sucked away with the water from the outlet pipe 21 and introduced into the sampling container. When the amount of water (muddy water) in the mud storage space is pumped below the outlet hole 210, no water is pumped out of the outlet pipe, and then the water source switch is turned on to make the mud flushing module continue to spray water, and the water inlet pipe 11 is continued to be pulled to make the mud flushing module 10 slowly approach the mud suction module 20, and continue to flush the mud at the bottom of the sewage pipe in the mud storage space. When the amount of water in the mud storage space reaches the position of the liquid level switch again, the water source is turned off and the water spraying is stopped. After standing for a period of time, the pump is turned on again to pump out the flocculent sludge suspended on the upper part of the muddy water with the water. After multiple operations, the flocculent sludge in the mud storage space is completely pumped out. Finally, the pumped muddy water is decanted after static sedimentation, that is, the water in the muddy water in the sampling container is decanted, and the flocculent sludge sample in the sewage pipe is obtained, and the collection of the flocculent sludge sample in the sewage pipe is realized. Therefore, compared with the prior art, the flocculent sludge sampling device of the present invention has a simple structure and good collection effect, and can better sample flocculent sludge in various pipes. It solves the problem that the bottom mud sampling equipment in the prior art clamps the sludge through a clamp, which causes the sludge to easily flow out from the gap of the clamp and has poor flow collection ability, especially the inability to collect flocculent sludge.

[0067] like Fig. 9 As shown, the present invention also provides a flocculent sludge collection method using the above-mentioned flocculent sludge collection device, comprising the following steps:

[0068] S1, placing a mud flushing module and a mud suction module on a mud deposition wall at intervals, wherein mud is deposited on the mud deposition wall, and a mud storage space closed on all sides is formed between the mud flushing module and the mud suction module, wherein the mud storage space contains mud to be sampled;

[0069] S2, the water inlet pipe supplies water to the injection duct of the mud flushing module, and the water is sprayed to the sludge in the mud storage space through the injection duct;

[0070] S3, the water flow washes the silt to form muddy water, the muddy water is sucked away by the sample suction port of the mud suction module, and the muddy water is introduced into the sampling container through the water outlet pipe;

[0071] S4. Decant the water in the muddy water in the sampling container to obtain a sludge sample.

[0072] As a preferred embodiment, when collecting flocculent sludge in a sewage pipe, the flocculent sludge collection method in this embodiment more specifically includes the following steps:

[0073] S101, lower the mud flushing unit and the mud suction unit from the same inspection well into the sewage pipe;

[0074] S102, pull the mud flushing module to the next inspection well, during which the mud flushing module is slightly higher than the mud surface, and the large pieces of solid garbage on the mud surface are pushed to the next inspection well, and the water spray port of the injection duct on the mud flushing module is aligned with the sample suction port on the mud suction module;

[0075] By pushing the large pieces of solid waste on the mud surface to the next inspection well, the large pieces of solid waste in the mud storage space enclosed by the mud flushing module, the mud suction module and the side wall of the sewage pipe can be cleaned to the outside, avoiding the large pieces of solid waste in the mud storage space blocking the sample suction port in the mud suction module when collecting the flocculent sludge in the mud storage space, thereby affecting the mud sample collection work.

[0076] S103, connecting the water inlet pipe to a water source and the water outlet pipe to a water pump, so that water flows through the water inlet pipe into the jet duct in the mud flushing module, and then is sprayed out from the water spray port of the jet duct to flush the bottom mud of the sewage pipe in the mud storage space;

[0077] S104, pulling the water inlet pipe drives the mud flushing module to slowly approach the mud suction module;

[0078] S105, the water flow scours and rolls up the bottom mud of the sewage pipe to form muddy water, and the mixed muddy water is sealed in the mud storage space;

[0079] S106. When the water volume (muddy water) in the mud storage space reaches the position of the liquid level switch, the liquid level switch sends a signal to control the water source switch to close and stop spraying water. After standing for a period of time, the pump is turned on. The flocculent sludge suspended on the upper part of the muddy water is sucked out with the water through the outlet pipe by the suction force of the pump and introduced into the sampling container;

[0080] Taking into account that there may still be a small amount of sandy sludge in the bottom mud of the sewage pipe, and the flocculent sludge covers the surface of the sandy sludge, the muddy water mixed with the bottom mud of the pipe by water flow scouring also contains a small amount of sandy sludge. In this embodiment, since the height of the water outlet hole in the mud suction module is higher than the height of the sample suction and separation port, and since the flocculent sludge is small and light, and the sandy sludge is large and heavy, the sandy sludge will sink to the lower part of the muddy water after standing for a period of time, and the flocculent sludge will be suspended in the upper part of the muddy water. Then, the water pump is turned on, and the flocculent sludge suspended in the upper part of the muddy water is sucked away with the water through the water outlet and the outlet pipe by the suction force of the water pump and introduced into the sampling container, while the muddy water below the water outlet, that is, at the sample suction and separation port, will be retained in the lower part and cannot be sucked away, thereby achieving the effect of separating the flocculent sludge from the sandy sludge and collecting only the flocculent sludge.

[0081] S107. When the amount of water (muddy water) in the mud storage space is pumped to a level lower than the water outlet in the mud suction module, turn on the water source switch to allow the mud flushing module to continue spraying water, and continue to pull the water inlet pipe 11 to allow the mud flushing module 10 to slowly approach the mud suction module 20, and continue to flush the sludge at the bottom of the sewage pipe in the mud storage space. When the amount of water in the mud storage space reaches the position of the liquid level switch again, the water source switch is turned off and the water spraying is stopped. After standing for a period of time, turn on the water pump again to pump out the flocculent sludge suspended on the top of the mud water along with the water and introduce it into the sampling container.

[0082] S108, continuously repeating step 106 and step 107 to completely pump out the flocculent sludge in the sludge storage space.

[0083] S109. After the pumped muddy water is allowed to settle, the water in the muddy water is decanted to obtain a flocculent sludge sample at the bottom of the sewage pipe.

[0084] Compared with the prior art, the flocculent sludge collection device and flocculent sludge collection method of the present invention can well sample and collect flocculent sludge in sewage pipes, with good collection effect, and solves the problem that the bottom mud sampling equipment in the prior art clamps the sludge with a clamp, which causes the sludge to easily flow out from the gap of the clamp and has poor collection ability, especially the problem that flocculent sludge cannot be collected.

[0085] In summary, the flocculent sludge collection device and flocculent sludge collection method of the present invention have a simple device structure, use water flow to flush and roll up the sludge, collect the sludge by water flow carrying, and have a good collection effect, which solves the problem that the bottom mud sampling equipment in the prior art has poor collection capacity, especially the inability to collect flocculent sludge, and can better sample flocculent sludge in various pipelines. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0086] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A flocculent sludge collection device, characterized in that: include: A mud flushing unit, the mud flushing unit comprising a water inlet pipe and a mud flushing module, wherein a jet duct is provided in the mud flushing module; The water inlet pipe is in communication with the injection duct; A mud suction unit, the mud suction unit comprising a water outlet pipe and a mud suction module, the mud suction module is provided with a sample suction port, the water outlet pipe is communicated with the sample suction port; A mud storage space with four sides closed can be formed between the mud flushing module and the mud suction module; The mud flushing module includes a propulsion block and a guide block, the propulsion block is fixedly connected to the guide block, and the injection duct is formed between the propulsion block and the guide block, and the water spray port of the injection duct faces the mud suction module; the guide block is provided with a water inlet hole, the water inlet hole is communicated with the injection duct, and the water inlet pipe is fixedly connected to the guide block and communicated with the water inlet hole; The propulsion block is provided with a concave guide groove, the opening of which faces the mud suction module, the guide block is fixedly connected in the guide groove, and the injection duct is formed between the side wall of the guide block and the side wall of the guide groove.

2. A flocculent sludge collection device according to claim 1, characterized in that: The guide block is fixedly connected to the side wall of the guide groove through a bracket, and the guide block is arranged in the middle of the guide groove.

3. A flocculent sludge collection device according to claim 2, characterized in that: A guide skirt extending downward toward the mud suction module is provided at the upper edge of the propulsion block, and the guide skirt can guide the water flow sprayed from the injection duct to spray downward.

4. A flocculent sludge collecting device according to any one of claims 1 to 3, characterized in that: A central guide column is provided in the middle of the guide groove, and the central guide column extends into the water inlet hole.

5. The flocculent sludge collecting device according to claim 1, characterized in that: The propulsion block is conical, the area of ​​the cross section at the first end of the propulsion block is smaller than the area of ​​the cross section at the second end of the propulsion block, and a support plate is provided at the first end of the propulsion block.

6. The flocculent sludge collecting device according to claim 1, characterized in that: The mud suction module is also provided with a water outlet hole, which is connected to the sample suction port, the water outlet pipe is connected to the water outlet hole, and the sample suction port includes a sample suction separation port portion, and the height of the water outlet hole is higher than the height of the sample suction separation port portion.

7. A flocculent sludge collecting device according to any one of claims 1 to 3, characterized in that: The mud suction module is also provided with a water inlet pipe supporting groove.

8. A method for collecting flocculent sludge using the flocculent sludge collecting device according to any one of claims 1 to 7, characterized in that: The flocculent sludge sampling method comprises the following steps: S1, placing a mud flushing module and a mud suction module on a mud deposition wall at intervals, wherein mud is deposited on the mud deposition wall, and a mud storage space closed on all sides is formed between the mud flushing module and the mud suction module, wherein the mud storage space contains mud to be sampled; S2, the water inlet pipe supplies water to the injection duct of the mud flushing module, and the water is sprayed to the sludge in the mud storage space through the injection duct; S3, the water flow washes the silt to form muddy water, the muddy water is sucked away by the sample suction port of the mud suction module, and the muddy water is introduced into the sampling container through the water outlet pipe; S4. Decant the water in the muddy water in the sampling container to obtain a sludge sample.

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