Aftertreatment device for diesel hammer pile driver and diesel hammer pile driver

Abstract

The utility model provides an after-treatment device for a diesel hammer pile driver and the diesel hammer pile driver, the after-treatment device is reasonable in structure, safe and reliable, can be used for a long time on the diesel hammer pile driver and plays a role in purifying air, and the air inlet and outlet three-way pipe is arranged at the air inlet and outlet of the diesel hammer pile driver. A first port of the air inlet and outlet three-way pipe is communicated with an air inlet and outlet of the diesel hammer pile driver, an air inlet one-way valve is arranged at a second port of the air inlet and outlet three-way pipe, a third port of the air inlet and outlet three-way pipe is communicated with an air inlet of the post-treatment device body, and the post-treatment device body is installed on the diesel hammer pile driver through a damping mechanism. A hoop is arranged on the outer side of the post-treatment device body, the upper end and the lower end of the hoop are fixedly connected with hoop supporting plates respectively, the damping mechanism comprises a fixing bottom plate, the fixing bottom plate is installed on the diesel hammer pile driver, a plurality of post-treatment fixing plates are arranged on the fixing bottom plate, and the hoop supporting plates are connected with the post-treatment fixing plates through damping spring devices.

Description

Technical Field

[0001] The utility model relates to the technical field of post-treatment devices, and particularly relates to a post-treatment device for a diesel hammer pile driver and a diesel hammer pile driver. Background Technique

[0002] A diesel hammer pile driver is a pile driving machine that uses impact force to drive piles into the ground. The main body of a diesel hammer pile driver consists of a cylinder and a plunger. Its working principle is similar to that of a single-cylinder two-stroke diesel engine. The powerful pressure generated by the explosion of atomized diesel injected into the combustion chamber of the cylinder after being subjected to high pressure and high temperature is used to drive the hammer head to work.

[0003] Due to the high pile driving efficiency of diesel hammer pile drivers, they are widely used in engineering construction. However, during the use of diesel pile drivers, a large amount of black smoke and NOx are generated, resulting in thick smoke at the construction site and seriously polluting the environment. Existing diesel hammer pile drivers usually do not use post-treatment, which pollutes the environment and poses a considerable hazard to operators.

[0004] Chinese Utility Model Patent No. CN212052748U discloses a diesel hammer, which only has an air pump fixedly connected to a fixing plate by bolts. If the post-treatment device is installed in the same way as the air pump in this patent, due to the huge impact force generated by the pile hammer during the pile driving process and its high frequency, 10 - 20 hammer strikes per minute; the huge impact force makes it difficult for ordinary post-treatment to bear and is very likely to be damaged, and the connection structure between the post-treatment and the fixing plate is also very likely to be damaged; during the use of the pile driver, it is generally used for about 20 - 40 days in a project, so it must be safely and reliably used during the cycle. Content of the Utility Model

[0005] Aiming at the above problems, the utility model provides a post-treatment device for a diesel hammer pile driver and a diesel hammer pile driver, which have a reasonable structure, are safe and reliable, and can play a role in purifying the air during the long-term use of the diesel hammer pile driver.

[0006] Its technical solution is as follows: A post-treatment device for a diesel hammer pile driver, including the post-treatment device body, is characterized in that: An intake and exhaust three-way pipe is provided at the intake and exhaust ports of the diesel hammer pile driver. The first port of the intake and exhaust three-way pipe is connected to the intake and exhaust ports of the diesel hammer pile driver. An intake check valve is provided at the second port of the exhaust three-way pipe. The third port of the intake and exhaust three-way pipe is connected to the intake port of the post-treatment device body. The post-treatment device body is installed on the diesel hammer pile driver through a shock-absorbing mechanism. A hoop is provided outside the post-treatment device body. The upper and lower ends of the hoop are respectively fixedly connected with hoop support plates. The shock-absorbing mechanism includes a fixed bottom plate installed on the diesel hammer pile driver. A number of post-treatment fixing plates are provided on the fixed bottom plate. The hoop support plate is connected to the post-treatment fixing plate through a shock-absorbing spring device.

[0007] Further, the shock-absorbing spring device includes bolts. Mounting holes are respectively provided on the hoop support plate and the post-treatment fixing plate. The bolts respectively pass through the mounting holes on the hoop support plate and the post-treatment fixing plate and are threadedly engaged with nuts. A first spring and a second spring are sleeved on the bolts. The two ends of the first spring respectively abut against the nut and the post-treatment fixing plate. The two ends of the second spring respectively abut against the post-treatment fixing plate and the hoop support plate.

[0008] Further, a blocking pin is provided on the bolt and below the nut. The blocking pin is horizontally passed through the bolt.

[0009] Further, the hoop support plate includes a top flat plate. Support vertical plates are provided at both ends of the top flat plate. A connecting side plate is provided at the lower end of the support vertical plate. The hoop support plate is welded to the hoop through the connecting side plate. The mounting hole is provided on the top flat plate.

[0010] Further, a reinforcing bottom plate is also provided between the post-treatment fixing plate and the fixed bottom plate.

[0011] Further, weight-reducing holes are provided on the post-treatment fixing plate and the fixed bottom plate.

[0012] Further, the first port of the intake and exhaust three-way pipe is connected to the intake and exhaust ports of the diesel hammer pile driver through a fixed flange. A corrugated pipe is connected to the third port of the intake and exhaust three-way pipe. The other end of the corrugated pipe is connected to the intake port of the post-treatment device body through a flange.

[0013] Further, the intake check valve remains open when the diesel hammer pile driver intakes air and remains closed when the diesel hammer pile driver exhausts air.

[0014] Further, the post-treatment device body includes a DOC unit, and also includes a POC unit or a DPF unit. The DOC unit uses a metal DOC catalyst carrier, the POC unit uses a metal POC catalyst carrier, and the DPF unit uses a metal DPF catalyst carrier.

[0015] Further, the post-treatment device body is provided with a thickened cylinder body.

[0016] A diesel hammer pile driver, characterized in that it includes the above-mentioned post-treatment device for a diesel hammer pile driver.

[0017] The post-treatment device for a diesel hammer pile driver of the present utility model utilizes a commonly used hoop of the post-treatment device, and hoop support plates are arranged at the upper and lower ends of the hoop, and then connected to the hoop support plates and the post-treatment fixing plate through a shock absorption mechanism. The shock absorption mechanism is provided with a first spring and a second spring. The first spring is installed between the nut and the post-treatment fixing plate, and the second spring is installed between the post-treatment fixing plate and the hoop support plate. Thus, when the diesel hammer pile driver operates, springs are provided at both the upper and lower parts to play a shock absorption role. Moreover, the DOC unit of the post-treatment device uses a metal DOC catalyst carrier, the POC unit uses a metal POC catalyst carrier, and the DPF unit uses a metal DPF catalyst carrier, without using a ceramic catalyst carrier to prevent fragmentation during vibration; it is not easily shattered under the strong impact of the diesel hammer pile driver. The post-treatment device wrapping the metal carrier uses a thickened cylinder body, and the structural strength is higher. Description of the Drawings

[0018] Figure 1 A perspective view of the first view of a post-treatment device for a diesel hammer pile driver in an embodiment installed on a diesel hammer pile driver;

[0019] Figure 2 A perspective view of the second view of a post-treatment device for a diesel hammer pile driver in an embodiment installed on a diesel hammer pile driver;

[0020] Figure 3 A perspective view of the post-treatment device body in an embodiment installed on the shock absorption mechanism;

[0021] Figure 4 A schematic diagram of the intake and exhaust three-way pipe in an embodiment;

[0022] Figure 5 A top view of the post-treatment device body in an embodiment installed on the shock absorption mechanism;

[0023] Figure 6 For Figure 5 The sectional view in the B-B direction of Detailed Embodiments

[0024] As shown in the background art, few existing diesel pile hammers are equipped with post-treatment devices, which cause great harm to the environment and affect the health of the workers on the construction site. Moreover, due to the special working conditions of diesel pile hammers, ordinary post-treatment devices cannot be directly used on diesel pile hammers.

[0025] In view of this situation, see Figures 1 to 6 The present utility model provides a post-treatment device for a diesel pile hammer, including a post-treatment device body 1. An intake and exhaust three-way pipe 3 is provided at the intake and exhaust port 201 of the diesel pile hammer 2. The first port 301 of the intake and exhaust three-way pipe is connected to the intake and exhaust port 201 of the diesel pile hammer 2. An intake check valve 4 is provided at the second port 302 of the intake and exhaust three-way pipe. After the intake check valve 4 is opened, it is directly connected to the outside. The third port 303 of the intake and exhaust three-way pipe is connected to the intake port 101 of the post-treatment device body. The intake check valve 4 remains open when the diesel pile hammer 2 intakes air, and fresh air enters the intake and exhaust port 201 of the diesel pile hammer 2 from the third port 303 of the intake and exhaust three-way pipe. The intake check valve 4 remains closed when the diesel pile hammer 2 exhausts air, and the exhaust gas is discharged from the intake and exhaust port 201 of the diesel pile hammer 2, enters the intake port 101 of the post-treatment device body through the third port 303 of the intake and exhaust three-way pipe. After the exhaust gas is treated and purified by multiple units of the post-treatment device, it is discharged from the exhaust port.

[0026] The post-treatment device body 1 is installed on the diesel pile hammer 2 through a shock-absorbing mechanism 5. A hoop 6 is provided outside the post-treatment device body 1. Hoop support plates 7 are fixedly connected to the upper and lower ends of the hoop 6 respectively. The shock-absorbing mechanism 5 includes a fixed bottom plate 501, which is installed on the diesel pile hammer 2. A number of post-treatment fixing plates 502 are provided on the fixed bottom plate 501. The hoop support plate 7 is connected to the post-treatment fixing plate 502 through a shock-absorbing spring device.

[0027] In an embodiment, the diesel pile hammer 2 has two intake and exhaust ports 201. The first port 301 of the intake and exhaust three-way pipe is connected to the intake and exhaust port 201 of the diesel pile hammer through a fixed flange 304. A corrugated pipe 305 is connected to the third port 303 of the intake and exhaust three-way pipe. The other end of the corrugated pipe 305 is connected to the intake port 101 of the post-treatment device body 1 through a flange.

[0028] Specifically in the embodiment, the shock-absorbing spring device includes a bolt 801. Mounting holes are respectively provided on the hoop support plate 7 and the post-treatment fixing plate 502. The bolt 801 passes through the mounting holes on the hoop support plate 7 and the post-treatment fixing plate 502 respectively and is in threaded cooperation with a nut 802. A first spring 803 and a second spring 804 are sleeved on the bolt 801. Both ends of the first spring 803 abut against the nut 802 and the post-treatment fixing plate 502 respectively, and both ends of the second spring 804 abut against the post-treatment fixing plate 502 and the hoop support plate 7 respectively.

[0029] In the embodiment, the post-treatment device body 1 is wrapped by a hoop 6. The post-treatment device body 1 is installed in the post-treatment fixing plate 502 through the shock-absorbing spring device. Springs are provided at both the upper end and the lower end of the post-treatment fixing plate 502. When the diesel hammer pile driver works, it sways up and down, and the springs at both the upper and lower ends play a role in shock absorption.

[0030] In addition, a stop pin 805 is provided on the bolt 801 and below the nut 802. The stop pin 805 is horizontally arranged through the bolt 801 to prevent the nut 802 from falling off during impact.

[0031] In the embodiment, the hoop support plate 7 includes a top flat plate 701. Support vertical plates 702 are provided at both ends of the top flat plate 701. A connecting side plate 703 is provided at the lower end of the support vertical plate 702. The hoop support plate 7 is welded to the hoop 6 through the connecting side plate 703. The mounting hole is provided on the top flat plate 701. The hoop support plate 7 has a simple structure and is convenient to use and cooperate with the shock-absorbing mechanism 5.

[0032] In one embodiment, a reinforcing bottom plate 503 is further provided between the post-treatment fixing plate 502 and the fixed bottom plate 501. The setting of the reinforcing bottom plate 503 is used to enhance the connection strength between the post-treatment fixing plate 502 and the fixed bottom plate 501 and ensure the reliability of the installation of the post-treatment device.

[0033] In one embodiment, weight-reducing holes 504 are provided on the post-treatment fixing plate and the fixed bottom plate. Appropriately opening the weight-reducing holes 504 can achieve weight reduction while ensuring the structural strength.

[0034] The post-treatment device body 1 includes a DOC unit. The DOC unit is arranged close to the air inlet. A POC unit or a DPF unit can be arranged at the rear side of the DOC unit. In the embodiment, the DPF unit is adopted. Particularly, the DOC unit adopts a metal DOC catalyst carrier 102, and the DPF unit adopts a metal DPF catalyst carrier 103. Moreover, the post-treatment device body is provided with a thickened cylinder body, and the metal DOC + metal POC / DPF technical route is adopted; ceramic catalytic converters are not used to prevent cracking during vibration; it is not easily shattered under strong impact, and the cylinder body wrapping the metal carrier and other cylinder bodies are specially made of 2-3 mm thick stainless steel plates; it is thicker than the ordinary post-treatment plate.

[0035] Existing diesel hammer pile drivers are not equipped with after-treatment, causing environmental pollution. The shock-absorbing after-treatment solution provided in the embodiment can solve the problem of the huge instantaneous impact force during the operation of the diesel hammer pile driver. By setting up the after-treatment device, the pollution problem can be effectively solved. In this embodiment, the after-treatment device is innovatively used on the diesel hammer pile driver and has achieved success; it has solved the problem that has always plagued the diesel hammer pile driver and purified the air.

[0036] In addition, in the embodiment of the present utility model, a diesel hammer pile driver is also provided, which includes the after-treatment device for the diesel hammer pile driver in the above embodiment.

[0037] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

[0038] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A post-treatment device for a diesel hammer pile driver, comprising a post-treatment device body, characterized in that: An intake and exhaust three-way pipe is provided at the intake and exhaust ports of the diesel hammer pile driver. The first port of the intake and exhaust three-way pipe is communicated with the intake and exhaust ports of the diesel hammer pile driver. An intake check valve is provided at the second port of the exhaust three-way pipe. The third port of the intake and exhaust three-way pipe is communicated with the intake port of the after-treatment device body. The after-treatment device body is installed on the diesel hammer pile driver through a shock-absorbing mechanism. A hoop is provided outside the after-treatment device body. The upper and lower ends of the hoop are respectively fixedly connected with hoop support plates. The shock-absorbing mechanism includes a fixed bottom plate installed on the diesel hammer pile driver. A number of after-treatment fixing plates are provided on the fixed bottom plate. The hoop support plates are connected to the after-treatment fixing plates through shock-absorbing spring devices; The after-treatment device body includes a DOC unit, and also includes a POC unit or a DPF unit. The DOC unit uses a metal DOC catalyst carrier. The POC unit uses a metal POC catalyst carrier. The DPF unit uses a metal DPF catalyst carrier; The after-treatment device body is provided with a thickened cylinder; The first port of the intake and exhaust three-way pipe is connected to the intake and exhaust ports of the diesel hammer pile driver through a fixed flange. A corrugated pipe is connected to the third port of the intake and exhaust three-way pipe. The other end of the corrugated pipe is connected to the intake port of the after-treatment device body through a flange; The intake check valve remains open when the diesel hammer pile driver intakes air, and the intake check valve remains closed when the diesel hammer pile driver exhausts air.

2. The post-treatment device for a diesel hammer pile driver according to claim 1, characterized in that: The shock-absorbing spring device includes bolts. Mounting holes are respectively provided on the hoop support plates and the after-treatment fixing plates. The bolts respectively pass through the mounting holes on the hoop support plates and the after-treatment fixing plates and are threadedly engaged with nuts. First springs and second springs are sleeved on the bolts. The two ends of the first spring respectively abut against the nut and the after-treatment fixing plate. The two ends of the second spring respectively abut against the after-treatment fixing plate and the hoop support plate.

3. The post-treatment device for a diesel hammer pile driver according to claim 2, characterized in that: A blocking pin is provided on the bolt and below the nut. The blocking pin is horizontally arranged through the bolt.

4. The post-treatment device for a diesel hammer pile driver according to claim 2, characterized in that: The hoop support plate includes a top flat plate. Support vertical plates are provided at both ends of the top flat plate. Connecting side plates are provided at the lower ends of the support vertical plates. The hoop support plate is welded to the hoop through the connecting side plates. The mounting holes are provided on the top flat plate.

5. The post-treatment device for a diesel hammer pile driver according to claim 1, characterized in that: A reinforcing bottom plate is further provided between the after-treatment fixing plate and the fixed bottom plate. Weight-reducing holes are provided on the after-treatment fixing plate and the fixed bottom plate.

6. A diesel hammer pile driver, characterized in that: It includes the after-treatment device for a diesel hammer pile driver described in claim 1.

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