Dredger dredging method, dredger dredging system and dredger

Abstract

The invention discloses a dredging method of a dredger, a dredging system of the dredger and the dredger, and relates to the technical field of dredgers, the dredging method of the dredger comprises the steps that the conveying distance of the dredger for conveying mud from a dredging area to a mud unloading area is obtained; determining the concentration range of the slurry according to the conveying distance; the slurry concentration of the dredger in the process of conveying the slurry from the dredging area to the slurry unloading area is obtained; comparing the slurry concentration with the concentration range to obtain a comparison result; and adjusting the operation parameters of the reamer of the dredger according to the comparison result. According to the dredging method of the dredger, the mud concentration of the mud is obtained, the mud concentration is compared with the concentration range to obtain the comparison result, the operation parameters of the reamer are adjusted according to the comparison result, the mud concentration of the generated mud can be adjusted, and the mud concentration of the mud is within the concentration range; therefore, the dredging efficiency of the dredger can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dredging, and in particular to a dredging method for a dredger, a dredging system for a dredger, and a dredger. Background Art

[0002] A dredger is a kind of equipment widely used in engineering operations such as water dredging, channel dredging, and land reclamation. Its main working principle is to use the reamer located at the front of the hull to rotate and cut the sediment at the bottom of the riverbed in the dredging area, so that it mixes with the river water to form mud, and then the mud is sucked into the hull of the dredger through the mud suction pipe, and then pressurized by the mud pump to the mud unloading area to complete the dredging work. Since the dredging work is carried out underwater, it currently mainly relies on the crew on the dredger to adjust the operating parameters of the reamer of the dredger based on experience to adjust the dredging efficiency of the dredger. However, it is difficult for the crew to accurately adjust the reamer based on experience, resulting in low dredging efficiency of the dredger. Summary of the invention

[0003] The main purpose of the present invention is to provide a dredging method for a dredger, a dredging system for a dredger and a dredger, aiming to solve the technical problem of low dredging efficiency of the dredger.

[0004] To achieve the above object, the dredging method of the dredger proposed by the present invention comprises:

[0005] Obtaining the conveying distance of the dredger from the dredging area to the mud unloading area;

[0006] Determining a concentration range of the slurry according to the conveying distance;

[0007] Obtaining the concentration of mud during the process in which the dredger transports the mud from the dredging area to the mud unloading area;

[0008] comparing the mud concentration with the concentration range to obtain a comparison result;

[0009] The operating parameters of the reamer of the dredger are adjusted according to the comparison result.

[0010] In one embodiment, the step of determining the concentration range of the slurry according to the conveying distance includes:

[0011] The optimal concentration of the mud is calculated according to the conveying distance; wherein the calculation formula of the optimal concentration is ρ*L*f=P / 60, ρ is the optimal concentration, L is the conveying distance, f is the friction coefficient, and P is the power of the mud pump of the dredger;

[0012] The minimum concentration value is determined according to the difference between the optimal concentration and the first preset value, and the maximum concentration value is determined according to the sum of the optimal concentration and the second preset value; wherein the range defined by the minimum concentration value and the maximum concentration value is the concentration range.

[0013] In one embodiment, the step of adjusting the operating parameters of the reamer of the dredger according to the comparison result comprises:

[0014] If the mud concentration is not within the concentration range, the operating parameters of the reamer are adjusted.

[0015] In one embodiment, if the mud concentration is not within the concentration range, the step of adjusting the operating parameters of the reamer includes:

[0016] If the mud concentration is higher than the maximum concentration value, reducing the rotation speed of the reamer;

[0017] If the mud concentration is lower than the minimum concentration value, the rotation speed of the reamer is increased.

[0018] In one embodiment, if the mud concentration is not within the concentration range, the step of adjusting the operating parameters of the reamer further includes:

[0019] If the mud concentration is higher than the maximum concentration value, reducing the depth of the reamer entering the mud;

[0020] If the mud concentration is lower than the minimum concentration value, the depth of the reamer entering the mud is increased.

[0021] In one embodiment, after the step of calculating the optimal concentration of the slurry according to the conveying distance, the method further comprises:

[0022] Determine a warning concentration range according to the optimal concentration; wherein the warning concentration range is within the concentration range;

[0023] The step of comparing the mud concentration with the concentration range to obtain a comparison result further includes:

[0024] comparing the mud concentration with the warning concentration range and the concentration range;

[0025] If the mud concentration is not within the warning concentration range but within the concentration range, a warning message is issued;

[0026] If the mud concentration is not within the concentration range, a warning message is issued.

[0027] In one embodiment, the step of determining the warning concentration range according to the optimal concentration includes:

[0028] The minimum warning value is determined according to the difference between the optimal concentration and the first warning value, and the maximum warning value is determined according to the sum of the optimal concentration and the second warning value; wherein the minimum warning value is greater than the minimum concentration value, the maximum warning value is less than the maximum concentration value, and the range defined by the minimum warning value and the maximum warning value is the warning concentration range.

[0029] In one embodiment,

[0030] If the mud concentration is not within the warning concentration range but within the concentration range, the step of issuing a warning message comprises:

[0031] If the mud concentration is greater than the maximum warning value and less than the maximum concentration value, a first warning message is issued;

[0032] If the mud concentration is less than the minimum warning value and greater than the minimum concentration value, a second warning message is issued;

[0033] If the mud concentration is not within the concentration range, the step of issuing a warning message comprises:

[0034] If the mud concentration is greater than the maximum concentration value, issuing a first warning message;

[0035] If the mud concentration is less than the minimum concentration value, a second warning message is issued.

[0036] The present invention also provides a dredging system for a dredger, wherein the dredging system is used to execute the above-mentioned dredging method for a dredger.

[0037] The present invention also provides a dredging vessel, wherein the dredging vessel is applied with the above-mentioned dredging system.

[0038] The technical solution of the present invention is to drive a dredger to a dredging area where dredging is required, and the dredger's auger rotates to cut the silt at the bottom of the riverbed in the dredging area, so that it is mixed with river water to form mud, and the mud is sucked into the hull of the dredger through a sludge suction pipe, and then pressurized and transported to the mud unloading area through a mud pump to complete the dredging work. The transportation distance of the dredger to transport the formed mud from the dredging area to the mud unloading area is obtained, and the appropriate concentration range of the mud in the process of sucking and transporting the mud to the mud unloading area through the sludge suction pipe can be determined according to the transportation distance. If the mud in the process of sucking and transporting the mud to the mud unloading area through the sludge suction pipe is within this concentration range, the dredger can have a higher dredging efficiency. When the mud is sucked in and transported to the mud unloading area through the mud suction pipe, the mud concentration of the mud is obtained in real time, and the mud concentration is compared with the concentration range to obtain a comparison result. The operating parameters of the reamer are accurately adjusted in real time according to the comparison result. For example, the rotation speed and mud entry depth of the reamer can be adjusted to adjust the amount of mud cut at the bottom of the riverbed in the dredging area, thereby adjusting the mud concentration of the mud so that the mud concentration of the generated mud is within the concentration range. There is no need for the crew to adjust the operating parameters of the reamer based on experience, thereby improving the dredging efficiency of the dredger. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0040] Figure 1 A schematic diagram of a flow chart of an embodiment of a dredging method for a dredger provided by the present invention;

[0041] Figure 2 for Figure 1 Detailed flowchart of step S200.

[0042] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] 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.

[0044] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] The invention provides a dredging method for a dredger.

[0047] See also Figure 1 In one embodiment of the present invention, the dredging method of the dredger comprises:

[0048] Step S100, obtaining the conveying distance of the dredger from the dredging area to the unloading area;

[0049] Step S200, determining the concentration range of the mud according to the conveying distance;

[0050] Step S300, obtaining the concentration of mud during the process of the dredging vessel transporting the mud from the dredging area to the mud unloading area;

[0051] Step S400, comparing the mud concentration with the concentration range to obtain a comparison result;

[0052] Step S500: adjusting the operating parameters of the reamer of the dredger according to the comparison result.

[0053] The technical solution of the present invention is to drive a dredger to a dredging area where dredging is required, and the dredger's auger rotates to cut the silt at the bottom of the riverbed in the dredging area, so that it is mixed with river water to form mud, and the mud is sucked into the hull of the dredger through a sludge suction pipe, and then pressurized and transported to the mud unloading area through a mud pump to complete the dredging work. The transportation distance of the dredger to transport the formed mud from the dredging area to the mud unloading area is obtained, and the appropriate concentration range of the mud in the process of sucking and transporting the mud to the mud unloading area through the sludge suction pipe can be determined according to the transportation distance. If the mud in the process of sucking and transporting the mud to the mud unloading area through the sludge suction pipe is within this concentration range, the dredger can have a higher dredging efficiency. When the mud is sucked in and transported to the mud unloading area through the mud suction pipe, the mud concentration of the mud is obtained in real time, and the mud concentration is compared with the concentration range to obtain a comparison result. The operating parameters of the reamer are accurately adjusted in real time according to the comparison result. For example, the rotation speed and mud entry depth of the reamer can be adjusted to adjust the amount of mud cut at the bottom of the riverbed in the dredging area, thereby adjusting the mud concentration of the mud so that the mud concentration of the generated mud is within the concentration range. There is no need for the crew to adjust the operating parameters of the reamer based on experience, thereby improving the dredging efficiency of the dredger.

[0054] In one embodiment of the present invention, step S200 includes:

[0055] Step S210, calculating the optimal concentration of the mud according to the conveying distance; wherein the calculation formula of the optimal concentration is ρ*L*f=P / 60, ρ is the optimal concentration, L is the conveying distance, f is the friction coefficient, and P is the power of the mud pump of the dredger;

[0056] Specifically, referring to the calculation formula of the optimal concentration, the transportation distance L, the friction coefficient f between the mud and the suction pipe of the dredger, and the power P of the mud pump of the dredger are substituted into the calculation formula ρ*L*f=P / 60, and the optimal concentration of the mud when being transported in the suction pipe can be calculated.

[0057] Step S220, determining a minimum concentration value according to a difference between the optimal concentration and a first preset value, and determining a maximum concentration value according to a sum of the optimal concentration and a second preset value; wherein a range defined by the minimum concentration value and the maximum concentration value is a concentration range.

[0058] Specifically, the optimal concentration minus the first preset value can obtain a difference, which is the minimum concentration value. The optimal concentration plus the second preset value can obtain a sum, which is the maximum concentration value. The concentration range can be limited by the maximum concentration value and the minimum concentration value. The determined concentration range is more reasonable, and the mud concentration of the generated mud is adjusted according to the determined reasonable concentration range, which can effectively improve the dredging efficiency of the dredger.

[0059] In one embodiment of the present invention, step S500 includes:

[0060] Step S510: If the mud concentration is not within the concentration range, adjusting the operating parameters of the reamer.

[0061] Specifically, if the comparison result shows that the mud concentration is not within the concentration range, the operating parameters of the reamer need to be adjusted so that the reamer rotates to cut the mud at the bottom of the riverbed in the dredging area so that the mud concentration formed by mixing with the river water is within the concentration range, thereby improving the dredging efficiency of the dredger.

[0062] In one embodiment of the present invention, step S510 includes:

[0063] Step S511, if the mud concentration is higher than the maximum concentration value, reducing the rotation speed of the reamer;

[0064] Step S512: if the mud concentration is lower than the minimum concentration value, increase the rotation speed of the reamer.

[0065] Specifically, if the comparison result shows that the mud concentration is higher than the maximum concentration value, reducing the reamer rotation speed can reduce the amount of silt generated by the reamer rotating and cutting the bottom of the riverbed in the dredging area, so that the mud concentration of the slurry mixed with river water drops to within the concentration range, thereby improving the dredging efficiency of the dredger; conversely, if the comparison result shows that the mud concentration is lower than the maximum concentration value, increasing the reamer rotation speed can increase the mud concentration of the slurry, thereby improving the dredging efficiency of the dredger. The mud concentration of the generated mud can be adjusted by adjusting the reamer rotation speed, which is simple and convenient.

[0066] In one embodiment of the present invention, step S500 further includes:

[0067] Step A511, if the mud concentration is higher than the maximum concentration value, reducing the depth of the reamer into the mud;

[0068] Step B511: if the mud concentration is lower than the minimum concentration value, increase the depth of the reamer into the mud.

[0069] Specifically, if the comparison result shows that the mud concentration is higher than the maximum concentration value, then reducing the auger's mud entry depth can reduce the amount of silt generated by the auger's rotation and cutting of the riverbed bottom in the dredging area, so that the mud concentration of the slurry mixed with river water drops to within the concentration range, thereby improving the dredging efficiency of the dredger; conversely, if the comparison result shows that the mud concentration is lower than the maximum concentration value, then increasing the auger's mud entry depth can increase the mud concentration of the slurry, thereby improving the dredging efficiency of the dredger. The mud concentration of the generated mud can be adjusted by adjusting the auger's rotation speed, which is simple and convenient.

[0070] In an embodiment of the present invention, after step S210, the method further includes:

[0071] Step B210, determining a warning concentration range according to the optimal concentration; wherein the warning concentration range is within the concentration range;

[0072] Step S400 further includes:

[0073] Step B410, comparing the mud concentration with the warning concentration range and the concentration range;

[0074] Step B411, if the mud concentration is not within the warning concentration range but within the concentration range, issuing a warning message;

[0075] Step B412: If the mud concentration is not within the concentration range, a warning message is issued.

[0076] Specifically, the warning concentration range can be determined according to the optimal concentration. If the mud concentration is not within the concentration range, a warning message is issued to inform the crew on the dredger that the mud concentration is higher than the maximum concentration value or lower than the minimum concentration value, and the operating parameters of the reamer need to be adjusted immediately, which can avoid the failure to adjust the operating parameters of the reamer in time, thereby ensuring that the dredger has a high dredging efficiency. When the mud concentration is not within the warning concentration range, but within the concentration range, a warning message is issued to inform the crew on the dredger that the mud concentration is close to the maximum concentration value or close to the minimum concentration value, and the operating parameters of the reamer need to be adjusted in advance, which can effectively avoid the mud concentration being out of the concentration range, thereby further ensuring that the dredger has a high dredging efficiency.

[0077] In one embodiment of the present invention, step B210 includes:

[0078] Step B211, determine the minimum warning value according to the difference between the optimal concentration and the first warning value, and determine the maximum warning value according to the sum of the optimal concentration and the second warning value; wherein the minimum warning value is greater than the minimum concentration value, the maximum warning value is less than the maximum concentration value, and the range defined by the minimum warning value and the maximum warning value is the warning concentration range.

[0079] Specifically, the optimal concentration minus the first warning value can obtain a difference, and the difference is the minimum warning value. The optimal concentration plus the second warning value can obtain a sum, and the sum is the maximum warning value. The maximum warning value and the minimum warning value can be used to limit the warning concentration range. The determined warning concentration range is more reasonable, and warning information and warning information are issued based on the determined reasonable warning concentration range, which can effectively ensure that the dredger has a good dredging efficiency.

[0080] In one embodiment of the present invention,

[0081] Step B411 includes:

[0082] Step B4111: If the mud concentration is greater than the maximum warning value and less than the maximum concentration value, a first warning message is issued; through the first warning message, the crew can know that the mud concentration is greater than the maximum warning value and needs to prepare in advance to adjust the operating parameters of the reamer.

[0083] Step B4112: If the mud concentration is less than the minimum warning value and greater than the minimum concentration value, a second warning message is issued; through the first warning message, the crew can know that the mud concentration is less than the minimum warning value and needs to prepare in advance to adjust the operating parameters of the reamer.

[0084] Step B412 includes:

[0085] Step B4121, if the mud concentration is greater than the maximum concentration value, a first warning message is issued; through the first warning message, the crew can know that the mud concentration is greater than the maximum concentration value and the operating parameters of the reamer need to be adjusted.

[0086] Step B4122: If the mud concentration is less than the minimum concentration value, a second warning message is issued; through the second warning message, the crew can know that the mud concentration is less than the minimum concentration value and the operating parameters of the reamer need to be adjusted.

[0087] Specifically, the first warning message and the second warning message can be used to inform the crew that they need to prepare in advance to adjust the operating parameters of the reamer. The first warning message and the second warning message can be used to inform the crew that they need to adjust the operating parameters of the reamer. This is simple and intuitive, thereby further ensuring that the dredger has better dredging efficiency.

[0088] The present invention also proposes a dredging system for a dredger, which is used to execute the dredging method for the dredger mentioned above. The dredging method for the dredger refers to the above-mentioned embodiments. Since the dredging system adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0089] In one embodiment, the dredging system includes a data acquisition module, a data analysis module and a control module; the data acquisition module is used to obtain in real time the transportation distance of the dredger to transport the mud from the dredging area to the mud unloading area, and is used to obtain in real time the mud concentration of the dredger in the process of transporting the mud from the dredging area to the mud unloading area; the data analysis module is communicatively connected to the data acquisition module, and the data analysis module is used to determine the concentration range of the mud according to the transportation distance, and is used to compare the mud concentration with the concentration range to obtain a comparison result; the control module is communicatively connected to the data analysis module, and the control module is used to adjust the operating parameters of the reamer of the dredger according to the comparison result. The dredging system can be used to execute the dredging method of the dredger mentioned above, without the need for crew members to manually execute the dredging method of the dredger mentioned above, with a high degree of intelligence and reduced labor intensity. It should be noted that the interaction between the data acquisition module, the data analysis module and the control module adopts the existing technology.

[0090] In one embodiment of the present invention, the data acquisition module includes a locator and a turbidity meter, and both the locator and the turbidity meter are connected to the data analysis module in communication; the distance between the dredger located in the dredging area and the mud unloading area can be obtained through the locator to obtain the transportation distance of the mud from the dredging area to the mud unloading area, and the mud concentration of the formed mud can be obtained through the turbidity meter, which is simple and convenient. It should be noted that the locator and the turbidity meter can adopt existing technologies, and the interaction between the locator and the turbidity meter and the data analysis module can also adopt existing technologies.

[0091] The present invention also proposes a dredger, which is applied with a dredging system. The specific structure of the dredging system refers to the above-mentioned embodiment. Since the dredger adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0092] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dredging method for a dredger, characterized in that: The dredging method of the dredger comprises: Obtaining the conveying distance of the dredger from the dredging area to the mud unloading area; Determining a concentration range of the slurry according to the conveying distance; Obtaining the concentration of mud during the process in which the dredger transports the mud from the dredging area to the mud unloading area; comparing the mud concentration with the concentration range to obtain a comparison result; The operating parameters of the reamer of the dredger are adjusted according to the comparison result.

2. The dredging method of a dredger according to claim 1, characterized in that: The step of determining the concentration range of the mud according to the conveying distance comprises: The optimal concentration of the mud is calculated according to the conveying distance; wherein the calculation formula of the optimal concentration is ρ*L*f=P / 60, ρ is the optimal concentration, L is the conveying distance, f is the friction coefficient, and P is the power of the mud pump of the dredger; The minimum concentration value is determined according to the difference between the optimal concentration and the first preset value, and the maximum concentration value is determined according to the sum of the optimal concentration and the second preset value; wherein the range defined by the minimum concentration value and the maximum concentration value is the concentration range.

3. The dredging method of a dredger according to claim 2, characterized in that: The step of adjusting the operating parameters of the reamer of the dredger according to the comparison result comprises: If the mud concentration is not within the concentration range, the operating parameters of the reamer are adjusted.

4. The dredging method of a dredger according to claim 3, characterized in that: If the mud concentration is not within the concentration range, the step of adjusting the operating parameters of the reamer comprises: If the mud concentration is higher than the maximum concentration value, reducing the rotation speed of the reamer; If the mud concentration is lower than the minimum concentration value, the rotation speed of the reamer is increased.

5. The dredging method of a dredger according to claim 3, characterized in that: If the mud concentration is not within the concentration range, the step of adjusting the operating parameters of the reamer further includes: If the mud concentration is higher than the maximum concentration value, reducing the depth of the reamer entering the mud; If the mud concentration is lower than the minimum concentration value, the depth of the reamer entering the mud is increased.

6. The dredging method for a dredger according to any one of claims 2 to 5, characterized in that: After the step of calculating the optimal concentration of the slurry according to the conveying distance, the method further includes: Determine a warning concentration range according to the optimal concentration; wherein the warning concentration range is within the concentration range; The step of comparing the mud concentration with the concentration range to obtain a comparison result further includes: comparing the mud concentration with the warning concentration range and the concentration range; If the mud concentration is not within the warning concentration range but within the concentration range, a warning message is issued; If the mud concentration is not within the concentration range, a warning message is issued.

7. The dredging method of a dredger according to claim 6, characterized in that: The step of determining the warning concentration range according to the optimal concentration comprises: The minimum warning value is determined according to the difference between the optimal concentration and the first warning value, and the maximum warning value is determined according to the sum of the optimal concentration and the second warning value; wherein the minimum warning value is greater than the minimum concentration value, the maximum warning value is less than the maximum concentration value, and the range defined by the minimum warning value and the maximum warning value is the warning concentration range.

8. The dredging method of a dredger according to claim 7, characterized in that: If the mud concentration is not within the warning concentration range but within the concentration range, the step of issuing a warning message comprises: If the mud concentration is greater than the maximum warning value and less than the maximum concentration value, a first warning message is issued; If the mud concentration is less than the minimum warning value and greater than the minimum concentration value, a second warning message is issued; If the mud concentration is not within the concentration range, the step of issuing a warning message comprises: If the mud concentration is greater than the maximum concentration value, issuing a first warning message; If the mud concentration is less than the minimum concentration value, a second warning message is issued.

9. A dredging system for a dredger, characterized in that: The dredging system is used to perform the dredging method for a dredger according to any one of claims 1 to 8.

10. A dredging vessel, characterized in that: The dredging ship is applied with the dredging system for the dredger as claimed in claim 9.

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