滚筒式机收膜杂除土装置设计及试验

doi:10.13229/j.cnki.jdxbgxb.20211267

Abstract

Abstract:

Aiming at the problem of high soil content of residual film by mechanical recovery， a trommel with function of separating soil from residual film was designed. Through the analysis of kinetics of the residual film material in the device， the basic structure parameters of the device were determined. The rotational speed of the trommel， the feeding speed， the inclination angle of the trommel and the pitch of the spiral blade were selected as the test factors， and the soil removal rate， the rate of the leakage of residual film and the work efficiency were selected as the evaluation indicators. A four-factor， five-level test was designed using the Central-Composite-Design experimental design principle to analyze the effects of each factor on the operational performance of membrane soil separation. The comprehensive effects of various factors on the response index were analyzed by using Design-Expert software surface response diagram， which showed that the optimal rotational speed of the trommel， the feeding speed， the inclination angle of the trommel and the pitch of the spiral blade are 24.90 r/min， 11.52 kg/min， -2° and 699.99 mm，respectively. The experimental results under this parameter combination are 94.48%， 1.90‰ and 7.61 kg/min， respectively. The errors between the experimental results and the optimization results are 2.15%， 5.79%， 2.63%， respectively. The results indicate that the constructed model has good reliability. The device designed in this study meets the design requirements， can realize the effective separation of residual film and soil impurities， and is of great significance to the mitigation of rural ecological pollution and sustainable agricultural development.

Key words: agricultural mechanization engineering, residual film mixture by mechanical recovery, membrane soil separation, trommel, response surface test

CLC Number:

S223.5

Peng-fei ZHOU,Xue-geng CHEN,He-wei MENG,Rong-qing LIANG,Bing-cheng ZHANG,Za KAN. Design and experiment of trommel with function of separating soil from residual film mixture[J].Journal of Jilin University(Engineering and Technology Edition), 2023, 53(9): 2718-2731.

Figures/Tables 12

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Table 6

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编码值	A/（r·min^-1）	B/（kg·min^-1）	C/（°）	D/mm
2	25	20	2	700
1	22.5	17.5	1	650
0	20	15	0	600
-1	17.5	12.5	-1	550
-2	15	10	-2	500

试验号	A	B	C	D	Y₁	Y₂	Y₃
1	-1	-1	-1	-1	90.80	3.44	8.27
2	1	-1	-1	-1	90.38	2.81	6.91
3	-1	1	-1	-1	89.54	3.39	5.43
4	1	1	-1	-1	88.28	2.85	6.71
5	-1	-1	1	-1	92.90	4.25	3.73
6	1	-1	1	-1	93.53	3.58	3.99
7	-1	1	1	-1	92.17	2.56	4.07
8	1	1	1	-1	91.64	3.52	4.08
9	-1	-1	-1	1	89.75	3.17	5.71
10	1	-1	-1	1	91.64	4.42	7.06
11	-1	1	-1	1	89.96	3.93	6.16
12	1	1	-1	1	89.75	5.83	7.08
13	-1	-1	1	1	88.49	3.24	3.65
14	1	-1	1	1	92.48	3.22	4.88
15	-1	1	1	1	91.01	2.60	4.14
16	1	1	1	1	93.79	3.41	5.13
17	-2	0	0	0	92.27	7.06	4.50
18	2	0	0	0	92.48	8.11	5.49
19	0	-2	0	0	92.27	3.36	5.75
20	0	2	0	0	91.64	3.88	5.01
21	0	0	-2	0	87.44	2.71	7.82
22	0	0	2	0	92.48	1.79	3.24
23	0	0	0	-2	91.43	1.79	5.61
24	0	0	0	2	88.91	2.89	5.84
25	0	0	0	0	89.96	5.31	6.33
26	0	0	0	0	89.77	6.35	5.30
27	0	0	0	0	90.90	4.52	5.37
28	0	0	0	0	89.75	5.60	5.93
29	0	0	0	0	89.75	5.50	5.19
30	0	0	0	0	89.12	5.08	6.21

误差来源	平方和	自由度	均方和	F	P
总和	76.05	29	R²	0.9150
模型	69.58	14	4.97	11.53	0.0001
A	2.21	1	2.21	5.14	0.0386
B	1.08	1	1.08	2.50	0.1344
C	28.15	1	28.15	65.29	<0.0001
D	2.29	1	2.29	5.31	0.0360
AB	1.76	1	1.76	4.09	0.0614
AC	2.95	1	2.95	6.84	0.0195
AD	6.29	1	6.29	14.59	0.0017
BC	2.44	1	2.44	5.66	0.0310
BD	4.13	1	4.13	9.58	0.0074
CD	2.70	1	2.70	6.26	0.0244
A²	10.11	1	10.11	23.44	0.0002
B²	6.91	1	6.91	16.03	0.0011
C²/10^-4	2.863	1	2.863	6.643	0.9798
D²	0.085	1	0.085	0.20	0.6630
残差	6.47	15	0.43
失拟项	4.80	10	0.48	1.44	0.3617
纯误差	1.67	5	0.33

误差来源	平方和	自由度	均方和	F	P
总和	66.51	29	R²	0.9361
模型	62.26	14	4.45	15.69	<0.0001
A	1.11	1	1.11	3.91	0.0666
B	0.042	1	0.042	0.15	0.7068
C	1.17	1	1.17	4.13	0.0603
D	1.32	1	1.32	4.64	0.0479
AB	0.64	1	0.64	2.26	0.1537
AC	0.051	1	0.051	0.18	0.6786
AD	1.45	1	1.45	5.12	0.0389
BC	1.19	1	1.19	4.19	0.0586
BD	0.76	1	0.76	2.67	0.1231
CD	2.48	1	2.48	8.75	0.0098
A²	6.2	1	6.2	21.87	0.0003
B²	7.3	1	7.3	25.74	0.0001
C²	20.21	1	20.21	71.28	<0.0001
D²	19.16	1	19.16	67.59	<0.0001
残差	4.25	15	0.28
失拟项	2.42	10	0.24	0.66	0.7327
纯误差	1.84	5	0.37

误差来源	平方和	自由度	均方和	F	P
总和	45.25	29	R²	0.9199
模型	41.63	14	2.97	12.30	<0.0001
A	1.85	1	1.85	7.65	0.0144
B	0.35	1	0.35	1.43	0.2503
C	34.61	1	34.61	143.19	<0.0001
D	0.049	1	0.049	0.20	0.6603
AB	0.18	1	0.18	0.77	0.3956
AC	5.63310^-3	1	5.63310^-3	0.023	0.8808
AD	1.16	1	1.16	4.78	0.0450
BC	0.87	1	0.87	3.62	0.0766
BD	0.91	1	0.91	3.77	0.0711
CD	0.66	1	0.66	2.71	0.1202
A²	0.86	1	0.86	3.54	0.0794
B²	0.18	1	0.18	0.73	0.4051
C²	0.051	1	0.051	0.21	0.6541
D²	9.33310^-4	1	9.33310^-4	3.86310^-3	0.9513
残差	3.63	15	0.24
失拟项	2.39	10	0.24	0.97	0.5518
纯误差	1.24	5	0.25

Design and experiment of trommel with function of separating soil from residual film mixture

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Figures/Tables 12

References 38

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试验	A	B	C	D	Y₁	Y₂	Y₃
预测值	24.80	11.43	-2	694.99	94.51	1.79	7.81
实际值1	25	12	-2	700	92.28	1.80	7.38
实际值2	25	12	-2	700	93.66	2.00	7.64
实际值3	25	12	-2	700	91.49	1.91	7.82

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