阅读说明：本技术 用于污泥处理的微波干燥装置 (Microwave drying device for sludge treatment ) 是由 汪博 陆秀兵 陈明 于 2020-06-19 设计创作，主要内容包括：本发明公开了一种用于污泥处理的微波干燥装置,包括机架,所述机架内设有用于输送污泥的传送机构,所述传送机构的上方设有固接在所述机架上的箱体,所述箱体内设有微波谐振腔。所述箱体的一侧固接有龙门架,所述龙门架的一侧与所述微波谐振腔连通,另一侧限定形成供污泥进入的进料口。所述进料口处还设有用于限制污泥厚度的倾斜挡板,所述倾斜挡板滑动设置在所述龙门架上,其上端与调节其移动的调节组件连接。所述倾斜挡板的下端与传送机构之间限定形成供污泥通过的限高开口。本发明的微波干燥装置避免了污泥厚度过大导致的干燥不充分的问题。(The invention discloses a microwave drying device for sludge treatment, which comprises a rack, wherein a conveying mechanism for conveying sludge is arranged in the rack, a box body fixedly connected to the rack is arranged above the conveying mechanism, and a microwave resonant cavity is arranged in the box body. And a portal frame is fixedly connected to one side of the box body, one side of the portal frame is communicated with the microwave resonant cavity, and the other side of the portal frame is limited to form a feed inlet for sludge to enter. The feed inlet is also provided with an inclined baffle plate for limiting the thickness of the sludge, the inclined baffle plate is arranged on the portal frame in a sliding manner, and the upper end of the inclined baffle plate is connected with an adjusting component for adjusting the movement of the portal frame. And a height limiting opening for sludge to pass through is defined between the lower end of the inclined baffle and the conveying mechanism. The microwave drying device provided by the invention avoids the problem of insufficient drying caused by excessive sludge thickness.)

1. A microwave drying device for sludge treatment comprises a rack (1), wherein a conveying mechanism (2) for conveying sludge is arranged in the rack (1), a box body (3) fixedly connected to the rack (1) is arranged above the conveying mechanism (2), and a microwave resonant cavity is arranged in the box body (3); the method is characterized in that: a portal frame (4) is fixedly connected to one side of the box body (3), one side of the portal frame (4) is communicated with the microwave resonant cavity, and the other side of the portal frame defines a feed port (41) for sludge to enter; the feed inlet (41) is also provided with an inclined baffle (5) for limiting the thickness of the sludge, the inclined baffle (5) is arranged on the portal frame (4) in a sliding manner, and the upper end of the inclined baffle is connected with an adjusting component for adjusting the movement of the portal frame; a height limiting opening for sludge to pass through is limited and formed between the lower end of the inclined baffle (5) and the conveying mechanism (2).

2. A microwave drying apparatus as in claim 1, wherein: the gantry crane is characterized in that sliding grooves (42) which are obliquely arranged are symmetrically formed in the inner side wall of the gantry frame (4), and sealing strips which can be connected with the sliding grooves (52) in a dynamic sealing mode are arranged on two sides of the oblique baffle (5).

3. A microwave drying apparatus as in claim 2, wherein: and a roller shaft (43) capable of freely rotating is further installed on one side, close to the feeding hole (41), of the portal frame (4), and the side wall of the roller shaft (43) abuts against the inclined baffle (5).

4. A microwave drying apparatus as in any of claims 1-3, wherein: the adjusting assembly comprises a connecting plate (61), an adjusting plate (62) and an adjusting groove (63); the connecting plate (61) is horizontally arranged, one end of the connecting plate is fixedly connected with the inclined baffle (5), and the other end of the connecting plate is hinged with the adjusting plate (62); the adjusting groove (63) is arranged at the top end of the portal frame (4), a plurality of parallel limiting blocking strips (631) are arranged in the adjusting groove, and a limiting channel is limited and formed between any two adjacent limiting blocking strips (631); the bottom end of the adjusting plate (62) is provided with a limiting block (621) which can be embedded into any limiting channel.

5. A microwave drying apparatus as in claim 4, wherein: the outer wall of the limiting barrier strip (631) is coated with an elastic rubber layer.

6. A microwave drying apparatus as in claim 1, wherein: one side of the top end of the box body (3) close to the feed inlet (41) is provided with a medicine adding opening (31), and the other side is provided with an exhaust opening (32).

7. A microwave drying apparatus as in claim 1, wherein: the conveying mechanism (2) comprises a feeding conveying roller set (21) and a discharging conveying roller set (22) which are arranged on the rack (1); and the feeding conveying roller group (21) and the discharging conveying roller group (22) are jointly wound with a conveying belt for conveying sludge.

8. A microwave drying apparatus as in claim 6, wherein: a tension adjusting roller set (23) used for adjusting the tension of the conveying belt is arranged between the feeding conveying roller set (21) and the discharging conveying roller set (22).

Technical Field

The invention relates to the technical field of sludge treatment equipment, in particular to a microwave drying device for sludge treatment.

Background

The dewatered sludge is the final product of municipal sewage treatment plants, and the yield of the dewatered sludge is increased along with the increasing discharge amount and treatment efficiency of municipal sewage. The sludge is made into granular fertilizer by drying or is made into mixed fertilizer by adding chemical fertilizer at the same time, and the method enters the market for sale, thereby achieving the purposes of safety, convenient use and sludge treatment cost balance. However, since the amount of moisture contained in the sludge is at least eighty percent of the total weight, the drying treatment has certain difficulty.

The microwave drying is to dry the water in the materials by a microwave heating method. The microwave has penetrating performance to heat the material inside and outside simultaneously, so that the temperature difference between the inside and the outside of the material is small, the material is heated uniformly, and the drying quality of the material is greatly improved. However, the existing sludge stays in the microwave drying device for a fixed time, if the thickness of the sludge is too large, the moisture of the sludge positioned at the bottom layer is difficult to overflow sufficiently during drying, the dried sludge still contains a large amount of moisture, and the drying effect is poor.

Disclosure of Invention

In order to overcome the defects, the invention aims to provide a microwave drying device for sludge treatment, which avoids the problem of insufficient drying caused by excessive sludge thickness.

In order to achieve the above purposes, the invention adopts the technical scheme that: the microwave drying device for sludge treatment comprises a rack, wherein a conveying mechanism for conveying sludge is arranged in the rack, a box body fixedly connected to the rack is arranged above the conveying mechanism, and a microwave resonant cavity is arranged in the box body. And a portal frame is fixedly connected to one side of the box body, one side of the portal frame is communicated with the microwave resonant cavity, and the other side of the portal frame is limited to form a feed inlet for sludge to enter. The feed inlet is also provided with an inclined baffle plate for limiting the thickness of the sludge, the inclined baffle plate is arranged on the portal frame in a sliding manner, and the upper end of the inclined baffle plate is connected with an adjusting component for adjusting the movement of the portal frame. And a height limiting opening for sludge to pass through is defined between the lower end of the inclined baffle and the conveying mechanism.

The invention has the beneficial effects that: the adjusting assembly drives the inclined baffle to move along the portal frame, so that the height of the height limiting opening is changed; when the sludge moves towards the direction of the box body along the conveying mechanism, the sludge sequentially enters the feeding hole and the height limiting opening, when the sludge moves to the height limiting opening, the sludge higher than the height limiting opening is resisted at the outer side of the height limiting opening by the inclined baffle, and the sludge lower than the height limiting opening enters the microwave resonant cavity through the height limiting opening to be dried; the sludge thickness entering into the microwave resonant cavity is limited by the inclined baffle, so that the problem of insufficient drying caused by excessive sludge thickness is avoided, and the drying effect of sludge is guaranteed.

Further, the inner side wall of the portal frame is symmetrically provided with obliquely arranged sliding grooves, and two sides of each oblique baffle are provided with sealing strips capable of being in dynamic sealing connection with the sliding grooves. The moving direction of the inclined baffle is limited by the arrangement of the sliding groove, and the sludge can be prevented from entering the gap between the sliding groove and the inclined baffle by the arrangement of the sealing strip.

Further, a roller shaft capable of freely rotating is further installed on one side, close to the feeding hole, of the portal frame, and the side wall of the roller shaft abuts against the inclined baffle. Through the arrangement of the roll shafts, rolling friction is formed between the inclined baffle and a top plate of the portal frame when the inclined baffle moves, and the moving smoothness of the inclined baffle is improved.

Further, the adjusting assembly comprises a connecting plate, an adjusting plate and an adjusting groove. The connecting plate is horizontally arranged, one end of the connecting plate is fixedly connected with the inclined baffle, and the other end of the connecting plate is hinged with the adjusting plate. The adjusting groove is arranged at the top end of the portal frame, a plurality of parallel limiting barrier strips are arranged in the adjusting groove, and a limiting channel is defined between any two adjacent limiting barrier strips. The bottom end of the adjusting plate is provided with a limiting block which can be embedded into any limiting channel.

When in adjustment, the connecting plate is pulled upwards to enable the limiting block to be separated from the limiting channel; the inclined baffle is pulled to move up or down along the sliding groove, and the connecting plate and the adjusting plate move along with the inclined baffle; when the slope baffle removed to the assigned position (limit for height the open-ended highly reach appointed height promptly), rotated the regulating plate, made the stopper can imbed in the spacing channel that corresponds, at this moment, the slope baffle is fixed under the combined action of spout, connecting plate, regulating plate, stopper, spacing channel.

Furthermore, the outer wall of the limiting barrier strip is coated with an elastic rubber layer.

Further, one side, close to the feed inlet, of the top end of the box body is provided with a dosing port, and the other side of the top end of the box body is provided with an exhaust port.

Further, the conveying mechanism comprises a feeding conveying roller group and a discharging conveying roller group which are arranged on the frame. And the feeding conveying roller group and the discharging conveying roller group are jointly wound with a conveying belt for conveying sludge.

Further, a tension adjusting roller set used for adjusting the tension of the conveying belt is arranged between the feeding conveying roller set and the discharging conveying roller set.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a partial enlarged view of portion A of FIG. 1;

FIG. 3 is a cut-away schematic view of an adjustment assembly of an embodiment of the present invention;

fig. 4 is a schematic perspective view of a gantry according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an adjustment plate according to an embodiment of the invention;

fig. 6 is a schematic structural diagram according to an embodiment of the present invention.

In the figure:

1-a frame; 2-a transfer mechanism; 21-a set of feed transfer rollers; 22-a set of outfeed transfer rollers; 23-a tension adjustment assembly; 3, a box body; 31-a medicine adding port; 32-an exhaust port; 4-a portal frame; 41-a feed inlet; 42-a chute; 43-roll axis; 5-inclined baffles; 61-a connecting plate; 62-adjusting plate; 621-a limiting block; 63-an adjustment groove; 631-limit stop strip.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.